{"product_id":"alphatheta-hdj-f9-soniclink-wireless-on-ear-dj-headphones","title":"AlphaTheta HDJ-F9 SonicLink Wireless On-Ear DJ Headphones","description":"\u003ch2\u003eAlphaTheta HDJ-F9 SonicLink Wireless DJ Headphones\u003c\/h2\u003e\n\n\u003cp\u003eThe AlphaTheta HDJ-F9 Wireless DJ Headphones are professional closed-back, on-ear headphones featuring SonicLink ultra-low-latency wireless technology, Bluetooth 5.3, and 1.6-inch dynamic drivers. Designed for professional DJ monitoring, they deliver wireless audio with latency as low as 9 milliseconds while supporting traditional wired connections for flexible performance setups.\u003c\/p\u003e\n\n\u003cp\u003eBuilt for club DJs, touring performers, scratch DJs, and electronic music producers, the HDJ-F9 combines accurate monitoring with the freedom of wireless operation. SonicLink technology enables responsive cueing and beatmatching without a headphone cable, while touch pairing simplifies connections to compatible DJ equipment. Newly developed drivers with PEEK-PU-PEEK composite diaphragms reproduce defined bass, clear midrange, and detailed high frequencies. Bass-reflex chambers enhance low-frequency response, making kick drums and basslines easier to distinguish during mixing. The closed-back, on-ear construction provides passive sound isolation for monitoring in loud performance environments.\u003c\/p\u003e\n\n\u003cp\u003eThe HDJ-F9 offers three listening options: SonicLink wireless, Bluetooth wireless, and wired audio. A flexible silicone headband, swivel-mounted earcups, and die-cast aluminum adjustment mechanism accommodate different DJ monitoring styles. Bluetooth multipoint connectivity supports two connected devices, while the HEADPHONES CONNECT app provides customizable status lighting and headphone management. With up to 9 hours of SonicLink playback or 25 hours of Bluetooth listening, the headphones support extended performances and everyday use.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSonicLink Ultra-Low-Latency Wireless:\u003c\/strong\u003e Delivers audio with latency as low as 9 ms, supporting precise DJ cueing, beatmatching, and scratching without a headphone cable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSonicLink Touch Pairing:\u003c\/strong\u003e Connects directly to compatible DJ equipment, including the DJM-V5 with updated firmware, through a simple touch-pairing process.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.6-Inch Dynamic Drivers:\u003c\/strong\u003e Incorporate PEEK-PU-PEEK composite diaphragms and bass-reflex chambers for controlled low-frequency reproduction and detailed monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth 5.3 Multipoint:\u003c\/strong\u003e Supports simultaneous pairing with two compatible devices, allowing convenient switching between connected audio sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Listening Modes:\u003c\/strong\u003e Switch between SonicLink, conventional Bluetooth, and wired monitoring to accommodate professional DJ performances and everyday listening.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Battery Performance:\u003c\/strong\u003e Provides up to 9 hours with SonicLink or 25 hours with Bluetooth when the status LED is disabled.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Professional Construction:\u003c\/strong\u003e Features swivel-mounted earcups, a silicone headband, and a die-cast aluminum slider for comfortable single-ear or dual-ear monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHEADPHONES CONNECT Integration:\u003c\/strong\u003e Supports customizable LED lighting, firmware updates, headphone location features, and personalized device settings through compatible mobile devices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSonicLink Wireless Technology for Professional DJ Monitoring\u003c\/h3\u003e\n\n\u003cp\u003eThe HDJ-F9 incorporates AlphaTheta's SonicLink wireless audio technology, developed to address the timing requirements of professional DJ performance. Unlike conventional Bluetooth connections, SonicLink provides audio transmission with latency as low as 9 milliseconds.\u003c\/p\u003e\n\n\u003cp\u003eThis reduced delay helps DJs accurately monitor incoming tracks, align beats, and execute scratching techniques without the timing disruption commonly associated with standard Bluetooth audio transmission.\u003c\/p\u003e\n\n\u003cp\u003eThe integrated SonicLink receiver operates in the 2.4 GHz frequency band and supports wireless communication at distances of approximately 49.2 feet in unobstructed conditions.\u003c\/p\u003e\n\n\u003ch4\u003eSonicLink Touch Pairing\u003c\/h4\u003e\n\n\u003cp\u003eTouch pairing simplifies the connection process between the headphones and compatible AlphaTheta equipment. When used with a supported DJ mixer, such as the DJM-V5 running the appropriate firmware, users can establish a SonicLink connection by bringing the headphones into contact with the designated pairing area.\u003c\/p\u003e\n\n\u003cp\u003eFor DJ mixers and other audio equipment without integrated SonicLink transmission, the separately available AlphaTheta HP-TX01 transmitter provides an additional connection option.\u003c\/p\u003e\n\n\u003cp\u003eThe HP-TX01 is an optional accessory and is not included with the HDJ-F9 headphones.\u003c\/p\u003e\n\n\u003ch3\u003e1.6-Inch Dynamic Drivers with PEEK-PU-PEEK Diaphragms\u003c\/h3\u003e\n\n\u003cp\u003eThe AlphaTheta HDJ-F9 features newly developed 1.6-inch dynamic drivers designed for accurate monitoring across the frequency spectrum.\u003c\/p\u003e\n\n\u003cp\u003eEach driver incorporates a PEEK-PU-PEEK composite diaphragm that combines different materials to control unwanted vibration. This construction helps maintain defined midrange and high-frequency reproduction while supporting detailed sound monitoring.\u003c\/p\u003e\n\n\u003cp\u003eThe headphones provide a specified frequency response of 5 Hz to 30 kHz, a 32-ohm impedance, and a sensitivity rating of 106 dB.\u003c\/p\u003e\n\n\u003ch4\u003eBass-Reflex Chamber for Defined Low Frequencies\u003c\/h4\u003e\n\n\u003cp\u003eAn integrated bass-reflex chamber positioned near the top of each earcup housing reinforces low-frequency reproduction.\u003c\/p\u003e\n\n\u003cp\u003eThis acoustic design helps reproduce the transient attack of kick drums and the tonal characteristics of basslines, providing useful information when matching beats or monitoring low-frequency transitions.\u003c\/p\u003e\n\n\u003cp\u003eThe combination of dynamic drivers and acoustic chamber construction makes the HDJ-F9 suitable for electronic music, dance music, and professional DJ monitoring applications.\u003c\/p\u003e\n\n\u003ch3\u003eClosed-Back On-Ear Design with Passive Sound Isolation\u003c\/h3\u003e\n\n\u003cp\u003eThe HDJ-F9 uses a closed-back, supra-aural design, meaning the ear cushions rest against the ears rather than surrounding them completely.\u003c\/p\u003e\n\n\u003cp\u003eIts optimized housing structure and cushioned ear pads help reduce the amount of surrounding noise reaching the listener. This passive sound isolation is particularly useful when monitoring tracks inside loud DJ booths.\u003c\/p\u003e\n\n\u003cp\u003eThe design allows performers to hear important elements of their music without relying entirely on increased headphone volume to overcome surrounding sound.\u003c\/p\u003e\n\n\u003cp\u003ePolyurethane ear cushions with a leather-style finish provide a comfortable contact surface, while the flexible silicone headband accommodates movement during performances.\u003c\/p\u003e\n\n\u003ch3\u003eBluetooth 5.3 with Multipoint Connectivity\u003c\/h3\u003e\n\n\u003cp\u003eIn addition to SonicLink, the HDJ-F9 supports Bluetooth 5.3 for music listening, track preparation, and communication with compatible mobile devices and computers.\u003c\/p\u003e\n\n\u003cp\u003eBluetooth multipoint functionality allows the headphones to maintain connections with two compatible devices simultaneously. Users can move between audio sources without repeatedly disconnecting and pairing the headphones.\u003c\/p\u003e\n\n\u003cp\u003eSupported audio codecs include SBC and AAC, while Bluetooth profiles include A2DP, AVRCP, HSP, and HFP.\u003c\/p\u003e\n\n\u003cp\u003eGoogle Fast Pair and Windows Swift Pair provide simplified Bluetooth pairing with compatible Android and Windows devices.\u003c\/p\u003e\n\n\u003ch4\u003eBuilt-In Microphone for Hands-Free Communication\u003c\/h4\u003e\n\n\u003cp\u003eAn integrated omnidirectional electret condenser microphone enables hands-free calling when the headphones are connected to compatible devices.\u003c\/p\u003e\n\n\u003cp\u003eThe microphone operates across a specified frequency range of 100 Hz to 4 kHz and supports communication through compatible Bluetooth calling profiles.\u003c\/p\u003e\n\n\u003ch3\u003eProfessional Comfort and Durable Construction\u003c\/h3\u003e\n\n\u003cp\u003eThe HDJ-F9 is designed to accommodate the different ways professional DJs wear headphones during performances.\u003c\/p\u003e\n\n\u003cp\u003eSwivel-mounted earcup assemblies allow users to monitor with both ears, listen through a single earcup, or position the headphones around their neck or shoulders between tracks.\u003c\/p\u003e\n\n\u003cp\u003eThe flexible silicone headband helps maintain a comfortable fit while allowing freedom of movement during energetic performances.\u003c\/p\u003e\n\n\u003cp\u003eAn adjustable die-cast aluminum slider provides structural support in an area frequently subjected to repeated adjustment and handling.\u003c\/p\u003e\n\n\u003cp\u003eAlphaTheta has subjected the headphones to international durability testing to evaluate their suitability for professional use.\u003c\/p\u003e\n\n\u003ch3\u003eRechargeable Battery with Extended Playback Time\u003c\/h3\u003e\n\n\u003cp\u003eThe HDJ-F9 incorporates a rechargeable lithium polymer battery that supports extended wireless listening sessions.\u003c\/p\u003e\n\n\u003cp\u003eIn SonicLink mode, the headphones provide approximately 9 hours of playback with the status LED disabled or 7 hours with the LED illuminated.\u003c\/p\u003e\n\n\u003cp\u003eBluetooth operation extends the available listening time to approximately 25 hours with the LED disabled or 13 hours when illuminated.\u003c\/p\u003e\n\n\u003cp\u003eA full battery charge takes approximately 2.5 hours under the manufacturer's specified conditions. A 30-minute charge provides approximately 2.5 hours of SonicLink playback.\u003c\/p\u003e\n\n\u003cp\u003eActual operating time varies depending on volume, wireless connection conditions, and other usage factors.\u003c\/p\u003e\n\n\u003ch3\u003eHEADPHONES CONNECT App and Customizable LED Lighting\u003c\/h3\u003e\n\n\u003cp\u003eThe HDJ-F9 supports the dedicated AlphaTheta HEADPHONES CONNECT application for personalized headphone management.\u003c\/p\u003e\n\n\u003cp\u003eThrough the app, users can adjust the color and brightness of the headphones' status LED, rename the device, and configure automatic power-off settings.\u003c\/p\u003e\n\n\u003cp\u003eAdditional features include voice assistant control settings, firmware updates, and a headphone location function that can trigger an audible sound to help locate the device.\u003c\/p\u003e\n\n\u003cp\u003eThe application also supports headphone management and troubleshooting functions. Feature availability depends on the supported mobile operating system and application version.\u003c\/p\u003e\n\n\u003ch3\u003eSecure Wired Monitoring with Locking Audio Cable\u003c\/h3\u003e\n\n\u003cp\u003eThe HDJ-F9 includes a detachable coiled audio cable for conventional wired monitoring when wireless operation is unnecessary or unavailable.\u003c\/p\u003e\n\n\u003cp\u003eThe cable measures approximately 3.9 feet in its coiled configuration and extends to approximately 9.8 feet, providing flexibility around DJ mixers and performance equipment.\u003c\/p\u003e\n\n\u003cp\u003eA bayonet-style locking connection secures the cable to the headphones and helps prevent accidental disconnection during use.\u003c\/p\u003e\n\n\u003cp\u003eThe included cable terminates in a 1\/8-inch stereo mini plug and features an L-shaped connector. A screw-type 1\/4-inch stereo adapter provides compatibility with professional DJ mixers and other equipment equipped with standard headphone outputs.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n\u003ch4\u003eGeneral Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\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\u003eManufacturer Part Number:\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\u003eHeadphone Style:\u003c\/strong\u003e On-Ear (Supra-Aural)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Construction:\u003c\/strong\u003e Closed-Back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDriver Type:\u003c\/strong\u003e Dynamic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSound Configuration:\u003c\/strong\u003e Stereo\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Listening Modes:\u003c\/strong\u003e SonicLink Wireless, Bluetooth Wireless, Wired Analog\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight Without Cable:\u003c\/strong\u003e 0.6 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Warranty:\u003c\/strong\u003e Limited 2 Years\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eDriver and Acoustic Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDriver Diameter:\u003c\/strong\u003e 1.6\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDriver Design:\u003c\/strong\u003e Dome-Type Dynamic\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 kHz\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 Integrated Bass-Reflex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise Isolation:\u003c\/strong\u003e Passive Closed-Back Construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eSonicLink Wireless Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWireless Technology:\u003c\/strong\u003e AlphaTheta SonicLink\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Specified Latency:\u003c\/strong\u003e 9 ms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Frequency:\u003c\/strong\u003e 2.4 GHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Transmission Distance:\u003c\/strong\u003e Approximately 49.2 ft in Unobstructed Conditions\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 Touch-Pairing Mixer:\u003c\/strong\u003e AlphaTheta DJM-V5 with Updated Firmware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional Wireless Transmitter:\u003c\/strong\u003e AlphaTheta HP-TX01\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSonicLink Playback Time, LED Off:\u003c\/strong\u003e Approximately 9 Hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSonicLink Playback Time, LED On:\u003c\/strong\u003e Approximately 7 Hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eBluetooth Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth Version:\u003c\/strong\u003e 5.3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth Operating Frequency:\u003c\/strong\u003e 2.4 GHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Bluetooth Transmission Distance:\u003c\/strong\u003e Approximately 32.8 ft in Unobstructed Conditions\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\u003eBluetooth Multipoint:\u003c\/strong\u003e Supported\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Simultaneously Connected Devices:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick Pairing:\u003c\/strong\u003e Google Fast Pair, Windows Swift Pair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth Playback Time, LED Off:\u003c\/strong\u003e Approximately 25 Hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth Playback Time, LED On:\u003c\/strong\u003e Approximately 13 Hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eBuilt-In Microphone Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicrophone Type:\u003c\/strong\u003e Electret Condenser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicrophone Polar Pattern:\u003c\/strong\u003e Omnidirectional\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicrophone Frequency Range:\u003c\/strong\u003e 100 Hz - 4 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands-Free Calling:\u003c\/strong\u003e Supported\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eWired Audio Connectivity\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Connection Type:\u003c\/strong\u003e Detachable Wired Analog\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Audio Plug:\u003c\/strong\u003e 1\/8\" Stereo Mini\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Audio Adapter:\u003c\/strong\u003e 1\/4\" Stereo, Screw-Type\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Cable Type:\u003c\/strong\u003e Coiled Audio Cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoiled Cable Length:\u003c\/strong\u003e 3.9 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Extended Cable Length:\u003c\/strong\u003e Approximately 9.8 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Connector Style:\u003c\/strong\u003e L-Shaped Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Attachment:\u003c\/strong\u003e Bayonet-Style Locking Mechanism\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eBattery and Charging Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Type:\u003c\/strong\u003e Built-In Rechargeable Lithium Polymer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Operating Voltage:\u003c\/strong\u003e DC 3.7 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Voltage:\u003c\/strong\u003e DC 5 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Connector:\u003c\/strong\u003e USB Type-C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Charging Time:\u003c\/strong\u003e Approximately 2.5 Hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick Charge:\u003c\/strong\u003e 30 Minutes for Approximately 2.5 Hours of SonicLink Playback\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum SonicLink Runtime:\u003c\/strong\u003e Approximately 9 Hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Bluetooth Runtime:\u003c\/strong\u003e Approximately 25 Hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Charging Cable:\u003c\/strong\u003e USB Type-C to USB Type-C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Cable Length:\u003c\/strong\u003e 1.6 ft\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003ePhysical Construction\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadband Type:\u003c\/strong\u003e Adjustable and Flexible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadband Cushion Material:\u003c\/strong\u003e Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEarpad Material:\u003c\/strong\u003e Polyurethane with Leather-Style Finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEarcup Movement:\u003c\/strong\u003e Swivel-Mounted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustment Slider Material:\u003c\/strong\u003e Die-Cast Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonitoring Configurations:\u003c\/strong\u003e Single-Ear and Dual-Ear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.6 lb Without Cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eApplication and Connectivity Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompanion Application:\u003c\/strong\u003e AlphaTheta HEADPHONES CONNECT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomizable Status LED:\u003c\/strong\u003e Color and Brightness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus LED Deactivation:\u003c\/strong\u003e Supported\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDevice Renaming:\u003c\/strong\u003e Supported Through Companion App\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Power-Off Configuration:\u003c\/strong\u003e Supported\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Assistant Settings:\u003c\/strong\u003e Siri and Google Assistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Location Function:\u003c\/strong\u003e Find My Headphones\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware Updates:\u003c\/strong\u003e Supported Through Companion App\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNFC Standard:\u003c\/strong\u003e ISO\/IEC 15693 Tag\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eEnvironmental Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Charging Temperature:\u003c\/strong\u003e 50 - 95 Degrees Fahrenheit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 32 - 104 Degrees Fahrenheit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Relative Humidity:\u003c\/strong\u003e 35 - 80%, Noncondensing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x AlphaTheta HDJ-F9 Professional Wireless DJ Headphones\u003c\/li\u003e\n\u003cli\u003e1 x Coiled Audio Cable, 3.9 ft (Approximately 9.8 ft Extended)\u003c\/li\u003e\n\u003cli\u003e1 x 1\/4\" Stereo Screw-Type Plug Adapter\u003c\/li\u003e\n\u003cli\u003e1 x USB Type-C to USB Type-C Charging Cable, 1.6 ft\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","brand":"AlphaTheta","offers":[{"title":"Default Title","offer_id":50719320375493,"sku":"ALPH-HDJF9","price":349.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/3085\/3829\/files\/1-alphatheta-hdj-f9_a4c5d542-bef4-44fc-9e25-9044aa2be379.jpg?v=1792183813","url":"https:\/\/avlgear.com\/products\/alphatheta-hdj-f9-soniclink-wireless-on-ear-dj-headphones","provider":"AVLGEAR","version":"1.0","type":"link"}