{"product_id":"alphatheta-hdj-f9-professional-wireless-dj-headphones","title":"AlphaTheta HDJ-F9 Professional Wireless DJ Headphones","description":"\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\u003cp\u003eThe AlphaTheta HDJ-F9 Professional Wireless DJ Headphones in Black deliver exceptional sound quality, ultra-low-latency wireless monitoring and outstanding comfort for professional DJ performances. Featuring AlphaTheta's innovative SonicLink wireless technology, the HDJ-F9 provides responsive audio monitoring with latency as low as 9 milliseconds, allowing DJs to mix, cue and scratch without the restrictions of traditional headphone cables. Combining powerful 40 mm drivers, excellent sound isolation and a flexible on-ear design, these headphones are engineered for demanding club environments, live performances and everyday listening.\u003c\/p\u003e\n\n\u003cp\u003eAt the heart of the HDJ-F9 is a newly developed 40 mm driver featuring a PEEK-PU-PEEK composite diaphragm, designed to deliver deep, defined bass and balanced mid-to-high frequencies with minimal distortion. An integrated bass-reflex chamber enhances low-frequency response, reproducing punchy kick drums and detailed basslines with exceptional clarity. The optimised acoustic structure also provides excellent passive sound isolation, helping DJs monitor accurately in loud environments without needing excessive volume.\u003c\/p\u003e\n\n\u003cp\u003eSonicLink wireless connectivity delivers ultra-low-latency monitoring over distances of up to approximately 15 metres in unobstructed conditions. SonicLink Touch Pairing enables instant connection with compatible DJ equipment, including the AlphaTheta DJM-V5, while the optional HP-TX01 transmitter allows SonicLink connectivity with other audio equipment. Bluetooth 5.3 connectivity provides additional flexibility for everyday listening, with multipoint pairing allowing simultaneous connections to two compatible devices. Google Fast Pair and Windows Swift Pair make connecting to supported devices quick and convenient.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for professional performance, the HDJ-F9 features swivel-mounted earcups, a flexible silicone headband and a durable die-cast aluminium slider. This construction supports comfortable single-ear monitoring, conventional two-ear listening and resting the headphones around the neck. A secure bayonet-locking cable connection prevents accidental disconnection during wired use, while the included coiled cable provides a reliable alternative to wireless operation.\u003c\/p\u003e\n\n\u003cp\u003eThe built-in rechargeable battery delivers up to 9 hours of SonicLink playback or up to 25 hours of Bluetooth listening with the status LED switched off. A full charge takes approximately 2.5 hours, while a 30-minute charge provides around 2.5 hours of SonicLink playback. The dedicated HEADPHONES CONNECT app provides additional personalisation, including adjustable status LED colours and brightness, automatic power-off settings and a Find My Headphones function. Combining professional sound, flexible connectivity and robust construction, the AlphaTheta HDJ-F9 is an advanced monitoring solution for DJs who demand freedom of movement without compromising performance.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional on-ear wireless DJ headphones in Black, designed for live performance, DJ monitoring and everyday listening\u003c\/li\u003e\n\u003cli\u003eAlphaTheta SonicLink ultra-low-latency wireless technology delivers responsive monitoring with latency as low as 9 ms\u003c\/li\u003e\n\u003cli\u003eSonicLink wireless transmission range of approximately 15 metres in unobstructed conditions\u003c\/li\u003e\n\u003cli\u003eSonicLink Touch Pairing enables quick connection with compatible DJ equipment, including the AlphaTheta DJM-V5\u003c\/li\u003e\n\u003cli\u003eCompatible with the optional AlphaTheta HP-TX01 SonicLink transmitter for connection to other audio equipment\u003c\/li\u003e\n\u003cli\u003eNewly developed 40 mm dynamic drivers deliver powerful bass, clear midrange and detailed high frequencies\u003c\/li\u003e\n\u003cli\u003ePEEK-PU-PEEK composite diaphragms suppress unwanted vibration for balanced sound reproduction with minimal distortion\u003c\/li\u003e\n\u003cli\u003eIntegrated bass-reflex chambers enhance low-frequency response and deliver punchy, well-defined kick drums\u003c\/li\u003e\n\u003cli\u003eOptimised closed-back acoustic design provides excellent passive sound isolation for monitoring in loud DJ booths\u003c\/li\u003e\n\u003cli\u003eBluetooth 5.3 connectivity supports wireless music playback and hands-free calling\u003c\/li\u003e\n\u003cli\u003eMultipoint Bluetooth pairing allows simultaneous connection to two compatible devices\u003c\/li\u003e\n\u003cli\u003eSupports SBC and AAC Bluetooth audio codecs\u003c\/li\u003e\n\u003cli\u003eGoogle Fast Pair and Windows Swift Pair provide convenient pairing with compatible devices\u003c\/li\u003e\n\u003cli\u003eSwivel-mounted earcups and flexible headband support comfortable single-ear and two-ear monitoring\u003c\/li\u003e\n\u003cli\u003eDurable die-cast aluminium slider provides long-lasting reliability for professional use\u003c\/li\u003e\n\u003cli\u003eFlexible silicone head cushion and polyurethane ear pads provide a comfortable fit\u003c\/li\u003e\n\u003cli\u003eSecure bayonet-locking cable connection helps prevent accidental disconnection during wired monitoring\u003c\/li\u003e\n\u003cli\u003eUp to 9 hours of SonicLink playback with the status LED switched off\u003c\/li\u003e\n\u003cli\u003eUp to 25 hours of Bluetooth playback with the status LED switched off\u003c\/li\u003e\n\u003cli\u003eApproximately 2.5-hour charging time, with a 30-minute charge providing around 2.5 hours of SonicLink playback\u003c\/li\u003e\n\u003cli\u003eHEADPHONES CONNECT app supports status LED customisation, automatic power-off settings and Find My Headphones functionality\u003c\/li\u003e\n\u003cli\u003eBuilt-in omnidirectional microphone supports hands-free calls\u003c\/li\u003e\n\u003cli\u003eIncludes a 1.2-metre coiled cable extendable to approximately 3 metres, a 6.3 mm stereo adaptor, USB-C charging cable and carrying pouch\u003c\/li\u003e\n\u003cli\u003eLightweight 285 g construction for comfortable extended listening sessions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- split --\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\n\u003ch3\u003eGeneral\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: AlphaTheta\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel\u003c\/strong\u003e: HDJ-F9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Professional Wireless DJ Headphones\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour\u003c\/strong\u003e: Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Style\u003c\/strong\u003e: On-Ear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcoustic Design\u003c\/strong\u003e: Closed-Back, Dynamic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectivity\u003c\/strong\u003e: SonicLink Wireless, Bluetooth and Wired\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 285 g (10.06 oz), Excluding Cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Warranty\u003c\/strong\u003e: 2 Years\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHeadphones\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Type\u003c\/strong\u003e: Closed, Dynamic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDriver Units\u003c\/strong\u003e: 40 mm (1.57\") Dome-Type\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDriver Diaphragm\u003c\/strong\u003e: PEEK-PU-PEEK Composite Film\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response\u003c\/strong\u003e: 5 Hz – 30,000 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpedance\u003c\/strong\u003e: 32 Ohms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensitivity\u003c\/strong\u003e: 106 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcoustic Chamber\u003c\/strong\u003e: Bass-Reflex Chamber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSound Isolation\u003c\/strong\u003e: Optimised Passive Sound Insulation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired Connection\u003c\/strong\u003e: 3.5 mm Stereo Mini Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Locking Mechanism\u003c\/strong\u003e: Bayonet Lock\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSonicLink Wireless\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWireless Technology\u003c\/strong\u003e: AlphaTheta SonicLink\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWireless Latency\u003c\/strong\u003e: As Low as 9 ms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Transmission Distance\u003c\/strong\u003e: Approximately 15 m (49.2 ft), Unobstructed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Frequency Band\u003c\/strong\u003e: 2.4 GHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTouch Pairing\u003c\/strong\u003e: Supported with Compatible SonicLink Equipment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible DJ Equipment Example\u003c\/strong\u003e: AlphaTheta DJM-V5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional Wireless Transmitter\u003c\/strong\u003e: AlphaTheta HP-TX01, Sold Separately\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlayback Time with Status LED Off\u003c\/strong\u003e: Approximately 9 Hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlayback Time with Status LED On\u003c\/strong\u003e: Approximately 7 Hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBluetooth\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth Version\u003c\/strong\u003e: Bluetooth 5.3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Transmission Distance\u003c\/strong\u003e: Approximately 10 m (32.8 ft), Unobstructed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Frequency Band\u003c\/strong\u003e: 2.4 GHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported Bluetooth Profiles\u003c\/strong\u003e: A2DP, AVRCP, HSP, HFP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported Audio Codecs\u003c\/strong\u003e: SBC, AAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultipoint Connectivity\u003c\/strong\u003e: Supports Simultaneous Connection to 2 Devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePairing Methods\u003c\/strong\u003e: Google Fast Pair and Windows Swift Pair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlayback Time with Status LED Off\u003c\/strong\u003e: Approximately 25 Hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlayback Time with Status LED On\u003c\/strong\u003e: Approximately 13 Hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNFC\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported Standard\u003c\/strong\u003e: ISO\/IEC 15693 (Tag)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: SonicLink Touch Pairing with Compatible Equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMicrophone\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicrophone Type\u003c\/strong\u003e: Electret Condenser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolar Pattern\u003c\/strong\u003e: Omnidirectional\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Band\u003c\/strong\u003e: 100 Hz – 4,000 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Hands-Free Calling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBattery \u0026amp; Power\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Type\u003c\/strong\u003e: Built-In Rechargeable Lithium Polymer Battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Voltage\u003c\/strong\u003e: DC 3.7 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Power\u003c\/strong\u003e: DC 5 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Charging Time\u003c\/strong\u003e: Approximately 2.5 Hours at 25°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick Charging\u003c\/strong\u003e: 30-Minute Charge Provides Approximately 2.5 Hours of SonicLink Playback\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Charging Temperature\u003c\/strong\u003e: +10°C to +35°C (+50°F to +95°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 0°C to +40°C (+32°F to +104°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e: 35% RH – 80% RH, Non-Condensing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Connection\u003c\/strong\u003e: USB Type-C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConstruction \u0026amp; Comfort\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadband Cushion\u003c\/strong\u003e: Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEar Pad Material\u003c\/strong\u003e: Polyurethane, Leather-Style Finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlider Construction\u003c\/strong\u003e: Die-Cast Aluminium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEarcup Mechanism\u003c\/strong\u003e: Swivel-Mounted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadband Design\u003c\/strong\u003e: Flexible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonitoring Styles\u003c\/strong\u003e: Single-Ear and Two-Ear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Connection\u003c\/strong\u003e: Secure Bayonet-Locking Mechanism\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApp \u0026amp; Smart Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompanion App\u003c\/strong\u003e: AlphaTheta HEADPHONES CONNECT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus LED Customisation\u003c\/strong\u003e: Adjustable Colour and Brightness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus LED Disable Function\u003c\/strong\u003e: Supported\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Renaming\u003c\/strong\u003e: Supported\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Power-Off Configuration\u003c\/strong\u003e: Supported\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFind My Headphones\u003c\/strong\u003e: Supported via App\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudible Headphone Location\u003c\/strong\u003e: Supported\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Assistant Button Configuration\u003c\/strong\u003e: Siri and Google Assistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware Updates\u003c\/strong\u003e: Supported via App\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIncluded Accessories\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoiled Audio Cable\u003c\/strong\u003e: 1 x 1.2 m (Approximately 3.0 m Extended), with L-Shaped Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStereo Plug Adaptor\u003c\/strong\u003e: 1 x 6.3 mm (1\/4\") Screw-Type Adaptor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Charging Cable\u003c\/strong\u003e: 1 x USB Type-C to USB Type-C, 0.5 m\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarrying Pouch\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick Start Guide\u003c\/strong\u003e: Included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecautions for Use\u003c\/strong\u003e: Included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOptional Accessories\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSonicLink Transmitter\u003c\/strong\u003e: AlphaTheta HP-TX01, Sold Separately\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AlphaTheta","offers":[{"title":"Default Title","offer_id":46226632638599,"sku":"ATH-HDJ-F9","price":629.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0331\/4689\/6519\/files\/alphatheta-hdj-f9-professional-wireless-dj-headphones.jpg?v=1792294700","url":"https:\/\/www.belfieldmusic.com.au\/products\/alphatheta-hdj-f9-professional-wireless-dj-headphones","provider":"Belfield Music","version":"1.0","type":"link"}