【2-in-1 Bluetooth 5.3 Audio Adapter】This wireless adapter can work as either a transmitter or receiver, In TX Mode, it transmits audio from TVs, PCs, to Bluetooth headphones, Bluetooth speaker. In RX Mode, offer an easy way to stream music or answer handsfree call from your smartphone to the old stereo like car/home audio system. | 【High-Quality Stereo Sound】Bluetooth adapter built with bluetooth 5.3 technology, enjoy crystal clear, high-quality stereo sound with this Bluetooth adapter. Whether you're listening to music, watching a movie, or making a call, you'll experience superior audio quality. | 【Handsfree Calls &Navigation】 Built-in microphone for hands-free calling, one click the button to answer or hang up the call, the rainbow led light facilitate your driving, and it also supports broadcasting voice notification from existed navigation App. Make sure you drive safely! | 【Portable and Coloful】This compact, lightweight design is perfect for use on the go. Whether you're on an airplane, in a car, or at home, you can easily plug in and enjoy your audio content wirelessly. | 【Plug and Play】 Bluetooth transmitter receiver is quite easy to use. Just plug it into the 3.5mm aux jack and power it by the USB port, no need to continually charge the battery! Support Auto connection for paired devices.