Check the listing for details. Bluetooth 5.0 2in1 Transmitter Receiver Car Wireless Audio Adapter USB 3.5mm Aux. Color: Black, Condition: New. Listed at 4.58 USD. Feature:【Transmitter Receiver 2 IN 1】Connect to audio output devices such as TV, iPod, CD player, PC, MP3/MP4, and transmit audio to your Bluetooth stereo, headphones and speakers. And also turn wired speakers into Bluetooth speakers. Now you can enjoy high-quality stereo sound wirelessly. 【USB Powered】Plug it into the USB port and connect it to the device via an audio adapter while using. This adapter powered by the TV, PC or any mobile phone charger via the USB port. And have no built-in battery, but don't need to worry it will run out of power. 【USB Audio Support】Best choice for your PC / Laptop / TV, just need to connect it with a USB port can get the sound to the Bluetooth headset. As a transmitter it supports USB digital audio input. 【Plug & Play】Plug and play, no any driver required. Dual 3.5mm port, no need to switch, just need to select the mode you want and plug in. Blue light is transmitter mode, and the red light is receiver mode. Specification:Item Type: Bluetooth AdapterBluetooth version: Bluetooth 5.0+EDRTransmission signal distance: 10mColor: BlackInput voltage: DC/5VInput interface: 3.5mm +USBOutput interface: 3.5mmItem Size: 25mm * 11mm * 42mm Package: 1pack is 1x 5.0 Bluetooth receiver transmitter+1xaudio cable