Check the listing for details. 2-in-1 Wireless Bluetooth 5.0 Transmitter Receiver Adapter Audio 3.5mm Jack Aux. Color: Black, Condition: New. Listed at 6.99 USD. Portable 3.5mm Bluetooth Aux Adapter for Your Car/Home Sound SystemThis Wireless Audio Receiver uses advanced Bluetooth technology to upgrade Non-Bluetooth devices. Turn non-Bluetooth devices into Bluetooth-enabled devices and develop more possibilities for them. For example, you can connect it to your wired headphones, speaker or car audio system, etc.Features:Using A2DP technology, it gives you crystal clear sound quality experience.Built-in microphone, one-click to Answer/End calls. Make driving safer.When it is successfully paired with your phone, it will automatically reconnect to your phone in the future.Make your car AUX system and home theater for AV HiFi surround system compatible with Bluetooth, and get music from Bluetooth enabled devices.Compatible for phone/pad/iPod/HTC/ Smart phone or Bluetooth PC, laptop.Simply connect this Bluetooth audio receiver to the input or auxiliary input on the speaker, pair it with a Bluetooth enabled device, and enjoy wireless music.Whether you want to use Bluetooth in the car, through the home theater system, in the kitchen, bathroom or bedroom, it is very convenient.Simple operation, use 3.5mm male to male audio connectors or 3.5mm male to male audio cables to connect speakers and receivers.