Wireless USB Bluetooth 5.0 Audio Transmitter Receiver AUX Adapter For PC TV Car Product Feature: Bluetooth Transmitter Receiver-① Transmitter mode: transmit audio from non-Bluetooth audio sources (TV, PC, CD / DVD player, etc.) to Bluetooth headphones/speakers via 3.5mm audio cable. ② Receiver mode: transmit audio from Bluetooth audio sources (smartphone, tablet, Bluetooth TV/PC) to non-Bluetooth headphones/speakers/car/home sound system via 3.5mm audio cables. Environmental protection material + extension cable: natural length 45CM, pull up to 1M, convenient for your use. The product interface is gold-plated, which is not afraid of oxidation, and further improves the sound quality One Button Switch Mode-Simply press a button to quickly switch transmitter/receiver mode. After the Bluetooth adapter is powered on, red light in TX-Transmitter mode, blue light in RX-Receiver mode. USB Power Supply-USB has a power function. When in use, it must be powered by a power device with a USB port (such as AC adapter, car charger, laptop). As long as the Bluetooth audio adapter connected with power, you will never worry it will run out of power while listening to music. Bluetooth Everywhere-The wireless connection with various Bluetooth devices is achieved by connecting the adapter to non-Bluetooth devices. And achieve a connection range of up to 33ft/10m (barrier-free). In TX mode, turn non-Bluetooth TV, PC, CD player, iPod, MP3 / MP4 into Bluetooth. RX mode: turn a non-Bluetooth home or vehicle music streaming sound system into Bluetooth. Product Specification: Type: USB Car Wireless Audio Adapter Bluetooth Version: V5.0 Input Interface: Micro USB+3.5MM Input: 5V/1A Cable length: 45CM, extension Wireless Range: 33ft/10m Product Weight: 0.1oz Package Included: 1x USB Car Wireless Audio Adapter 1x User Manual