{"product_id":"alphatheta-hdj-f9","title":"AlphaTheta HDJ-F9","description":"\n\u003ch2\u003eAlphaTheta HDJ-F9 Professional Wireless DJ Headphones with SonicLink – Black\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eAlphaTheta HDJ-F9 Professional Wireless DJ Headphones\u003c\/strong\u003e bring a new level of freedom to the DJ booth. Combining AlphaTheta's ultra-low-latency \u003cstrong\u003eSonicLink wireless technology\u003c\/strong\u003e with a compact on-ear design, they let you monitor and mix without a headphone cable getting in your way.\u003c\/p\u003e\n\n\u003cp\u003eWith wireless latency as low as \u003cstrong\u003e9 milliseconds\u003c\/strong\u003e, the HDJ-F9 is designed for accurate beatmatching, cueing and scratching using compatible SonicLink equipment. You also get Bluetooth 5.3 for everyday wireless listening and an included coiled cable for traditional wired DJ monitoring.\u003c\/p\u003e\n\n\u003cp\u003eNewly developed 40mm drivers, a bass-reflex chamber and effective passive sound isolation help deliver defined bass and clear detail, even in demanding DJ environments. Weighing just \u003cstrong\u003e285g without the cable\u003c\/strong\u003e, the HDJ-F9 combines professional performance with a comfortable, flexible design.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional closed-back, on-ear wireless DJ headphones\u003c\/li\u003e\n\u003cli\u003eAlphaTheta SonicLink wireless technology with latency as low as 9ms\u003c\/li\u003e\n\u003cli\u003eSonicLink Touch Pairing with compatible DJ equipment\u003c\/li\u003e\n\u003cli\u003eBluetooth 5.3 with multipoint connection for two devices\u003c\/li\u003e\n\u003cli\u003eNewly developed 40mm drivers with PEEK-PU-PEEK composite diaphragms\u003c\/li\u003e\n\u003cli\u003eBass-reflex chamber for enhanced low-frequency reproduction\u003c\/li\u003e\n\u003cli\u003eEffective passive sound isolation for DJ booth monitoring\u003c\/li\u003e\n\u003cli\u003eUp to 9 hours SonicLink playback with Status LED switched off\u003c\/li\u003e\n\u003cli\u003eUp to 25 hours Bluetooth playback with Status LED switched off\u003c\/li\u003e\n\u003cli\u003eApproximately 2.5-hour full charging time\u003c\/li\u003e\n\u003cli\u003e30-minute quick charge provides approximately 2.5 hours of use\u003c\/li\u003e\n\u003cli\u003eCustomisable Status LED through the HEADPHONES CONNECT app\u003c\/li\u003e\n\u003cli\u003eBuilt-in microphone for hands-free calls\u003c\/li\u003e\n\u003cli\u003eSwivelling earcups and adjustable headband\u003c\/li\u003e\n\u003cli\u003eDie-cast aluminium sliders and silicone head cushion\u003c\/li\u003e\n\u003cli\u003eIncludes locking coiled audio cable, 6.3mm adapter and carrying pouch\u003c\/li\u003e\n\u003cli\u003eManufacturer's 2-year warranty period\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDetailed Features \u0026amp; Benefits\u003c\/h3\u003e\n\n\u003ch4\u003eSonicLink Wireless DJ Monitoring with Just 9ms Latency\u003c\/h4\u003e\n\u003cp\u003eThe HDJ-F9 uses \u003cstrong\u003eAlphaTheta SonicLink\u003c\/strong\u003e, a dedicated wireless audio system developed for professional DJ monitoring. With latency as low as 9ms, SonicLink provides a responsive listening experience suitable for beatmatching, cueing and scratching.\u003c\/p\u003e\n\n\u003cp\u003eUnlike standard Bluetooth audio, which can introduce a noticeable delay, SonicLink is designed to keep headphone monitoring closely aligned with your performance.\u003c\/p\u003e\n\n\u003cp\u003eThe manufacturer specifies a maximum SonicLink transmission distance of approximately 15 metres in unobstructed conditions.\u003c\/p\u003e\n\n\u003ch4\u003eSonicLink Touch Pairing with Compatible DJ Equipment\u003c\/h4\u003e\n\u003cp\u003eSonicLink Touch Pairing allows you to connect the HDJ-F9 to supported AlphaTheta DJ equipment through a simple touch-pairing process.\u003c\/p\u003e\n\n\u003cp\u003eFor example, the AlphaTheta DJM-V5 mixer supports this function when updated to the required firmware version.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e For DJ mixers, controllers and other audio equipment without compatible built-in SonicLink transmission, the separately sold \u003cstrong\u003eAlphaTheta HP-TX01 SonicLink Transmitter\u003c\/strong\u003e is required for SonicLink wireless monitoring.\u003c\/p\u003e\n\n\u003ch4\u003e40mm Drivers with Detailed, Powerful Sound\u003c\/h4\u003e\n\u003cp\u003eThe HDJ-F9 features newly developed 40mm dome-type drivers using a PEEK-PU-PEEK composite diaphragm. This construction is designed to control unwanted vibration and reproduce a balanced sound with well-defined bass and clear midrange and treble.\u003c\/p\u003e\n\n\u003cp\u003eA dedicated bass-reflex chamber improves low-frequency response, helping DJs hear kick drums and basslines clearly when preparing transitions.\u003c\/p\u003e\n\n\u003cp\u003eWith a published frequency response of \u003cstrong\u003e5Hz to 30kHz\u003c\/strong\u003e, the HDJ-F9 is engineered for detailed music monitoring across a wide frequency range.\u003c\/p\u003e\n\n\u003ch4\u003ePassive Sound Isolation for Busy DJ Booths\u003c\/h4\u003e\n\u003cp\u003eThe closed-back on-ear design incorporates an optimised internal structure to reduce surrounding noise. This helps you focus on the track being cued without unnecessarily increasing headphone volume.\u003c\/p\u003e\n\n\u003cp\u003eThe HDJ-F9 uses passive acoustic isolation rather than manufacturer-specified active noise cancellation.\u003c\/p\u003e\n\n\u003ch4\u003eBluetooth 5.3 for Everyday Listening\u003c\/h4\u003e\n\u003cp\u003eOutside the DJ booth, the HDJ-F9 also works as a Bluetooth headphone for music, podcasts and everyday audio.\u003c\/p\u003e\n\n\u003cp\u003eBluetooth multipoint connectivity allows two compatible devices to remain connected simultaneously, making it easier to switch between a smartphone and computer.\u003c\/p\u003e\n\n\u003cp\u003eGoogle Fast Pair and Windows Swift Pair are supported for convenient pairing with compatible devices. The supported Bluetooth audio codecs are SBC and AAC.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor time-critical DJ mixing, use SonicLink or the supplied wired cable rather than conventional Bluetooth.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eBattery Life for DJ Sets and Daily Listening\u003c\/h4\u003e\n\u003cp\u003eThe built-in rechargeable battery offers different operating times depending on the wireless mode and Status LED setting:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSonicLink, LED off:\u003c\/strong\u003e Approximately 9 hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSonicLink, LED on:\u003c\/strong\u003e Approximately 7 hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth, LED off:\u003c\/strong\u003e Approximately 25 hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth, LED on:\u003c\/strong\u003e Approximately 13 hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eA full charge takes approximately 2.5 hours. A 30-minute charge can provide approximately 2.5 hours of additional use under the manufacturer's stated conditions.\u003c\/p\u003e\n\n\u003cp\u003eActual battery life varies with volume, audio content and operating conditions.\u003c\/p\u003e\n\n\u003ch4\u003eProfessional Comfort and Flexible Monitoring\u003c\/h4\u003e\n\u003cp\u003eThe HDJ-F9 weighs 285g without its cable and features a flexible silicone head cushion, polyurethane ear pads and adjustable die-cast aluminium sliders.\u003c\/p\u003e\n\n\u003cp\u003eThe swivelling earcup design accommodates different monitoring positions, including one-ear DJ monitoring, while the compact on-ear construction is convenient for transport and regular use.\u003c\/p\u003e\n\n\u003ch4\u003eCustomisable Status LED and HEADPHONES CONNECT App\u003c\/h4\u003e\n\u003cp\u003eAlphaTheta's HEADPHONES CONNECT app allows supported settings to be personalised, including the colour and brightness of the headphones' Status LED.\u003c\/p\u003e\n\n\u003cp\u003eYou can also switch the LED off, which can extend the manufacturer's quoted wireless playback time.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eApp availability:\u003c\/strong\u003e Platform availability and supported functions should be checked before purchase. At launch, AlphaTheta indicated that the iOS version would follow at a later date.\u003c\/p\u003e\n\n\u003ch4\u003eWired DJ Monitoring Included\u003c\/h4\u003e\n\u003cp\u003eThe HDJ-F9 can also be used as a conventional wired DJ headphone with its supplied 1.2m coiled cable, extendable to approximately 3m.\u003c\/p\u003e\n\n\u003cp\u003eThe cable has an L-shaped plug and is supplied with a screw-type 6.3mm stereo adapter, allowing connection to compatible professional DJ headphone outputs.\u003c\/p\u003e\n\n\u003cp\u003eThis provides a useful wired alternative when SonicLink equipment is unavailable or you prefer a traditional headphone connection.\u003c\/p\u003e\n\n\u003ch4\u003eBuilt-In Microphone for Calls\u003c\/h4\u003e\n\u003cp\u003eAn integrated omnidirectional electret condenser microphone allows the HDJ-F9 to be used for hands-free calls with compatible Bluetooth devices.\u003c\/p\u003e\n\n\u003cp\u003eThis makes the headphones useful beyond the DJ booth, whether you're listening to music, working on a computer or taking calls.\u003c\/p\u003e\n\n\u003ch3\u003eWho Are the AlphaTheta HDJ-F9 Headphones For?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional DJs:\u003c\/strong\u003e Low-latency wireless cueing and monitoring with compatible SonicLink equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClub DJs:\u003c\/strong\u003e Detailed bass reproduction and passive isolation for demanding booth environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScratch DJs:\u003c\/strong\u003e Responsive monitoring with SonicLink's ultra-low-latency connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMobile DJs:\u003c\/strong\u003e Freedom of movement without a traditional headphone cable when using SonicLink.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlphaTheta DJM-V5 users:\u003c\/strong\u003e SonicLink Touch Pairing with the required firmware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHome DJs:\u003c\/strong\u003e Professional headphone performance with wired and wireless connection options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMusic listeners:\u003c\/strong\u003e Bluetooth 5.3, multipoint pairing and extended battery life for everyday use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility \u0026amp; Important Ordering Information\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant: The AlphaTheta HDJ-F9 headphones do not include the HP-TX01 SonicLink Transmitter.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eTo use SonicLink wireless monitoring, you need compatible DJ equipment with built-in SonicLink transmission or the separately purchased HP-TX01 transmitter.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSonicLink Touch Pairing:\u003c\/strong\u003e Available with supported AlphaTheta equipment such as the DJM-V5, subject to the required firmware update.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOther DJ mixers and controllers:\u003c\/strong\u003e The HP-TX01 transmitter is required for SonicLink wireless monitoring where compatible SonicLink transmission is not built in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth:\u003c\/strong\u003e Suitable for compatible Bluetooth audio devices, but standard Bluetooth latency makes it less appropriate for precise DJ cueing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired connection:\u003c\/strong\u003e The supplied coiled cable supports conventional 3.5mm headphone connections, with an included 6.3mm adapter for suitable DJ equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHEADPHONES CONNECT:\u003c\/strong\u003e App availability and platform support may vary.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging:\u003c\/strong\u003e A USB-C to USB-C charging cable is included. A mains USB power adapter is not listed among the supplied accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater resistance:\u003c\/strong\u003e No IP or waterproof rating is published by the manufacturer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eBrand\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eAlphaTheta\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eModel \/ MPN\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eHDJ-F9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eColour\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eProduct Type\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eProfessional on-ear wireless DJ headphones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eHeadphone Design\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eClosed-back, dynamic, on-ear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eDriver Units\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e40mm dome-type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eDiaphragm\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003ePEEK-PU-PEEK composite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eFrequency Response\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e5Hz – 30kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eImpedance\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e32Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eSensitivity\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e106dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eWireless Technologies\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eSonicLink and Bluetooth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eSonicLink Latency\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eAs low as 9ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eSonicLink Frequency Band\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e2.4GHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eSonicLink Range\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eApprox. 15m, unobstructed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eBluetooth Version\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e5.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eBluetooth Frequency Band\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e2.4GHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eBluetooth Range\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eApprox. 10m, unobstructed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eBluetooth Profiles\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eA2DP, AVRCP, HSP, HFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eBluetooth Codecs\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eSBC, AAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eBluetooth Multipoint\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eTwo devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eFast Pairing\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eGoogle Fast Pair \/ Windows Swift Pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eNFC Standard\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eISO\/IEC 15693 (Tag)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eSonicLink Battery Life\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eApprox. 9h LED off \/ 7h LED on\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eBluetooth Battery Life\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eApprox. 25h LED off \/ 13h LED on\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eBattery Type\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eBuilt-in rechargeable lithium-polymer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eCharging Power\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eDC 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eBattery Voltage\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eDC 3.7V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eCharging Time\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eApprox. 2.5 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eWired Headphone Connection\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e3.5mm stereo mini jack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eIncluded Cable\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e1.2m coiled, approx. 3m extended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eMicrophone\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eBuilt-in omnidirectional electret condenser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eMicrophone Frequency Band\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e100Hz – 4kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eHead Cushion\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eSilicone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eEar Pad Material\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003ePolyurethane, leather-style finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eNet Weight\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e285g, without cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003ePacked Weight\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eNot published by manufacturer.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eWarranty Period\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eNot published by manufacturer.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:9px;border:1px solid #ddd;\"\u003eHS \/ TARIC Code\u003c\/th\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eNot published by manufacturer.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eWhat's Included?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x AlphaTheta HDJ-F9 wireless DJ headphones – Black\u003c\/li\u003e\n\u003cli\u003e1 x 1.2m coiled headphone cable, approximately 3m when extended\u003c\/li\u003e\n\u003cli\u003e1 x 6.3mm screw-type stereo plug adapter\u003c\/li\u003e\n\u003cli\u003e1 x USB-C to USB-C charging cable, 0.5m\u003c\/li\u003e\n\u003cli\u003e1 x Carrying pouch\u003c\/li\u003e\n\u003cli\u003e1 x Quick Start Guide\u003c\/li\u003e\n\u003cli\u003e1 x Precautions for Use document\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eNot included:\u003c\/strong\u003e The AlphaTheta HP-TX01 SonicLink Transmitter is sold separately.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eCan I DJ wirelessly with the AlphaTheta HDJ-F9?\u003c\/h4\u003e\n\u003cp\u003eYes. The HDJ-F9 supports SonicLink ultra-low-latency wireless monitoring with compatible SonicLink-enabled equipment or the separately available HP-TX01 transmitter.\u003c\/p\u003e\n\n\u003ch4\u003eWhat is the difference between SonicLink and Bluetooth?\u003c\/h4\u003e\n\u003cp\u003eSonicLink is designed for low-latency DJ monitoring, with delay as low as 9ms. Bluetooth 5.3 is intended primarily for everyday wireless listening and can introduce significantly more audio delay.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to buy the HP-TX01 transmitter?\u003c\/h4\u003e\n\u003cp\u003eOnly if you want SonicLink wireless monitoring from equipment without compatible built-in SonicLink transmission. The supplied cable also allows traditional wired DJ monitoring.\u003c\/p\u003e\n\n\u003ch4\u003eDoes the HDJ-F9 work with the AlphaTheta DJM-V5?\u003c\/h4\u003e\n\u003cp\u003eYes. AlphaTheta confirms SonicLink Touch Pairing with the DJM-V5 when the mixer is running the required updated firmware.\u003c\/p\u003e\n\n\u003ch4\u003eCan I use these headphones with a Pioneer DJ controller?\u003c\/h4\u003e\n\u003cp\u003eYes, where the controller has a compatible 3.5mm or 6.3mm headphone output, the included cable and adapter provide a conventional wired connection. For wireless SonicLink operation, compatible transmission hardware is required.\u003c\/p\u003e\n\n\u003ch4\u003eHow long does the battery last?\u003c\/h4\u003e\n\u003cp\u003eWith the Status LED switched off, AlphaTheta specifies approximately 9 hours via SonicLink or 25 hours via Bluetooth. Battery life is lower with the LED switched on and varies with usage.\u003c\/p\u003e\n\n\u003ch4\u003eCan I use the HDJ-F9 with my phone?\u003c\/h4\u003e\n\u003cp\u003eYes. Bluetooth 5.3 supports compatible smartphones and other Bluetooth audio devices, and the built-in microphone can be used for hands-free calls.\u003c\/p\u003e\n\n\u003ch4\u003eDoes the HDJ-F9 have active noise cancellation?\u003c\/h4\u003e\n\u003cp\u003eNo active noise cancellation feature is specified by AlphaTheta. The headphones use a closed-back on-ear design with optimised passive sound isolation.\u003c\/p\u003e\n\n\u003ch4\u003eCan I still DJ if the battery is flat?\u003c\/h4\u003e\n\u003cp\u003eThe HDJ-F9 includes a conventional wired audio cable for headphone monitoring. This provides an alternative to battery-powered wireless operation.\u003c\/p\u003e\n\n\u003ch4\u003eIs the HDJ-F9 an on-ear or over-ear headphone?\u003c\/h4\u003e\n\u003cp\u003eThe HDJ-F9 is an on-ear design. It is distinct from the larger over-ear HDJ-F10 model.\u003c\/p\u003e\n\n\u003ch4\u003eIs the SonicLink transmitter included?\u003c\/h4\u003e\n\u003cp\u003eNo. The HP-TX01 transmitter must be purchased separately if your DJ equipment does not provide compatible built-in SonicLink transmission.\u003c\/p\u003e\n\n\u003ch3\u003eComplete Your DJ Setup\u003c\/h3\u003e\n\u003cp\u003eFor wireless DJ monitoring with equipment that does not have SonicLink built in, consider the \u003cstrong\u003eAlphaTheta HP-TX01 SonicLink Transmitter\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eYou can also explore professional DJ mixers, DJ controllers, replacement headphone cables and protective headphone cases. Always confirm the compatibility of accessories with your exact equipment before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Buy from DJBox.ie?\u003c\/h3\u003e\n\u003cp\u003eDJBox.ie is an Irish-owned specialist DJ, sound and lighting retailer based in Tallaght, Dublin. Our team can help you choose professional DJ headphones, mixers, controllers and compatible accessories for your setup.\u003c\/p\u003e\n\n\u003cp\u003eVisit our Tallaght showroom for expert advice and product demonstrations where available, or order online with nationwide delivery and Click \u0026amp; Collect options. We also offer after-sales support to help you get the most from your equipment.\u003c\/p\u003e\n","brand":"AlphaTheta","offers":[{"title":"Default Title","offer_id":55380191150421,"sku":"HDJ-F9","price":379.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0405\/1779\/6004\/files\/AlphaTheta-HDJ-F9-AlphaTheta-66448166.jpg?v=1792230552","url":"https:\/\/www.djbox.ie\/products\/alphatheta-hdj-f9","provider":"DJbox.ie DJ Shop","version":"1.0","type":"link"}