Advanced Bluetooth 5.4 Technology: Experience seamless audio transmission with the latest Bluetooth 5.4, ensuring high fidelity sound and improved connectivity. Versatile 2-in-1 Functionality: Easily switch between transmitter and receiver modes to suit all your audio needs, whether for your TV, car stereo, or headphones. Universal Compatibility: Equipped with a standard 3.5mm audio jack, this adapter is compatible with a wide range of devices, making it a perfect travel companion. Compact and Portable: Designed with portability in mind, this lightweight adapter is ideal for use on the go, ensuring you can enjoy your music anywhere. Color: black Material: ABS Package Contents: 1 x Bluetooth 5.4 Audio Transmitter and Receiver 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.