This Bluetooth Receiver can add Bluetooth functionality to your vintage stereo/wired speaker/Amplifier/old car stereo, allowing you to enjoy music wirelessly, and answer hands-free calling. Make your or road trip more fun. One key to power on and enter pairing mode. Built with Bluetooth 5.3 technology, this Bluetooth receiver can provide 2X more stable connection, and 2X faster pairing speed than Bluetooth 5.0. Bluetooth audio adapter supports voice navigation. No need to look down at your phone while driving to your driving ! The built-in battery has a long battery life and can support up to 8+ hours of use after full . This Bluetooth audio adapter is smaller and more portable. Working range up to 33ft/10 meter, not limited by wires. Support Devices: Home stereo, speakers, headphones, earbuds, audio music streaming sound system, car stereo system, PC, etc. Note: This is a Bluetooth receiver and cannot transmit. The actual object may have color difference due to different light or display Colour:Black Material:ABS Package Contents: 1x Bluetooth 5.3 Receiver 1x Type-c Cable 1x AUX cbale 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.