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