Features1: Wireless Stereo Audio Adapter. Features2: Bluetooth Transmitter 3.5mm. Features3: Wireless Audio Receiver . Features4: Low latency Adapter. Features5: HD/LL/Adaptive CD-Quality Lossless Music. Features6: 2-In-1 Low Latency Wireless Adapter. Features7: Adaptive/HD/LL 2-In-1 Bluetooth Adapter. Features8: HD Bluetooth Audio Adapter Features9: LL Bluetooth Audio Adapter Features10: Adaptive/HD/LL Bluetooth Audio Adapter Features11: Support connect 2 Bluetooth headsets/speakers at the same time. RX Receiver Mode For Car Kit/Wired Speaker/Home Speaker/Speaker Power amplifier/Headphone ... TX Transmitter Mode For Airplane/TV/PC/Projector/Power amplifier/TV Box /Bluetooth Headphone/Earphone/Bluetooth Speaker ... Features12: AUX Bluetooth Receiver Adapter for Home Stereo System, HiFi 3.5mm RAC Bluetooth Bluetooth Adapter for Old Stereo Receiver Features13: Bluetooth 5.3 Audio Receiver 3.5mm AUX R/L Stereo Lossless HIFI Music Wireless Adapter Features14: Bluetooth HD Wireless For Speaker Earphones Adapter Features15: Bluetooth Receiver 5.1 HD 3.5mm Jack Aux Wireless Adapter Music for TV Car Bluetooth Audio Receiver Features16: Bluetooth Receiver 5.1 HD 3.5mm Jack Aux Wireless Adapter Music for TV Car Bluetooth 5.0 Audio Receiver Features17: 2 In 1 Bluetooth 5.3 Audio Receiver Transmitter Hifi Stereo Wireless Adapter 3.5MM AUX For Car Airplane TV PC Speaker Features18: New Bluetooth 5.2 Transmitter HD LL Low Latency Adaptive USB Wireless Audio Adapter Handsfree Call For PC TV Notebook Color: Black Material: ABS Package Contents: 1 * Audio cable 1 * cable 1 * Charging cable 1 * 5.4 Audio transceiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.