2-in-1 Bluetooth Adapter for Versatile Use: Seamlessly transform your car stereo, desktop computer, or wired speakers into Bluetooth-enabled devices. This dual-function Bluetooth transmiter receiver allows you to stream your favorite music wirelessly from smartphones, tablets, or laptops directly to your speakers or headphones, offering ultimate wireless freedom. | Hands-Free Calling for Safer Driving: With an integrated microphone, this car Bluetooth adapter ensures you can take calls hands-free through your car's speakers, enhancing your driving safety. It also supports voice navigation and announcements, so you can focus on the road without distractions. | Latest Bluetooth 5.3: Equipped with cutting-edge Bluetooth 5.3 technology, this adapter delivers a robust 10-meter range with lightning-fast pairing and stable reconnection to your last paired devices. Enjoy uninterrupted, low-latency audio streaming for a smoother listening experience. | Long Battery Life & Convenient Charging: Featuring a 250mAh battery, this Bluetooth adapter provides up to 14 hours of use in receiver mode and 11 hours in transmitter mode. The included Type-C fast-charging port allows for a full recharge in just 2 hours, with the added bonus of using the device while it charges. | Portable & High-Quality Audio: Measuring just 10.1 x 2.8 x 1.2 cm and weighing only 16g, this Bluetooth adapter is incredibly lightweight and easy to carry. It supports various Bluetooth protocols like HSP, HFP, A2DP, AVRCP, and SBC audio decoding, ensuring lossless sound quality whether you're streaming music or making calls.