Enjoy Wireless Music Streaming: This Bluetooth receiver adds Bluetooth functionality to a variety of non-Bluetooth devices via 3.5mm AUX cable, such as non-Bluetooth car audio systems, stereos, speakers, wired headphones. Just pair it with your phone to start enjoying high-quality music! HI-FI Music and Ultra-Clear Calls: Our car Bluetooth adapter adopts professional HD audio decoder, allowing you to enjoy high-quality music streaming. CVC8.0 noise cancellation technology helps eliminate echo and block intrusive background noise for crystal clear calls. Hands-Free Calling and Navigation: A built-in microphone allows for hands-free calls and an "MFB" button allows you to answer, hang up or reject calls. This Bluetooth auxiliary jack also supports voice notifications from existing navigation apps. No need to look at your phone, which guarantees safe driving! Bluetooth 5.3 and Dual Paring: Upgraded Bluetooth 5.3 chip is built-in for stable connection and fast transmission. The bluetooth