Seamless Connectivity: Upgrade your audio devices with our Bluetooth 5.0 adapter, ensuring high-quality wireless streaming with a stable connection. Versatile 2-in-1 Functionality: Easily switch between transmitter mode to send audio from your non-Bluetooth TV or laptop to your Bluetooth headphones or speakers, and receiver mode to receive wireless sound on your wired audio systems. Compact Design with Handsfree Support: This small, adapter comes equipped with a built-in microphone for handsfree calls when connected to your smartphone in receiver mode. Universal Compatibility: Works with a wide range of devices thanks to the standard 3.5mm jack, compatible with most smartphones, tablets, PCs, , and sound systems. Long Battery Life: Enjoy up to 10 hours of audio transmission or reception on a single charge, with quick recharging capability. Color:Black Material:plastic Package Contents: 1 * Audio Transmitter 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.