Versatile Connectivity: Seamlessly connect audio from TVs, airplane entertainment systems, gym equipment, and gaming consoles to wireless Bluetooth headphones. Alternatively, stream audio from smartphones, laptops, and CDs to your home or car speaker system using our advanced Bluetooth 5.4 technology. Universal Compatibility: Equipped with both USB and 3.5mm audio jacks, this adapter broadens your audio device compatibility. It's powered by USB, eliminating the need for frequent recharging and ensuring uninterrupted audio enjoyment. One-Touch Switching: Effortlessly switch between Bluetooth transmitting and receiving modes with a single button. This feature simplifies the management of audio sources and outputs, making it ideal for a variety of settings from home entertainment to car audio systems. Compact and Portable: Designed to be as small as a USB flash drive, our Bluetooth adapter is incredibly portable. It features Bluetooth 5.4 technology for precise indoor positioning within a 1-meter range and a clear transmission distance of up to 10 meters in open spaces. Enhanced User Experience: The upgraded LED display enhances user interaction by providing clear visual feedback on the device's status. This adapter is not just a utility device but also a sophisticated addition to your tech toolkit. Colour:Green & Black Material:plastic Package Contents: 1 * 5.4 transmitter Bluetooth 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.