【Enjoy Wireless Streaming Music】This AUX Bluetooth Receiver adds Bluetooth functionality to an array of non-Bluetooth devices via 3.5mm AUX cable, such as non-Bluetooth car audio systems, home stereos, speakers, wired headphones. Just pair it with your phone, and then start to experience high-quality music! 【HI-FI Music & Ultra-Clair Calls】Our bluetooth car adapter adopts a professional HD audio decoder chip, allowing you to enjoy high-quality music streaming. CVC8.0 Noise Cancellation tech helps to eliminate echo and block out intrusive background noise, providing you with clear calling sounds. 【Hands-Free Calling & Naigation】There is a built-in microphone for hands-free calling, and one “MFB” button to answer / hang up / reject / redial calls. This AUX Bluetooth receiver also supports broadcasting voice notifications from existed navigation Apps. No need to look down the phone, ensuring driving safety! 【Bluetooth 5.0 & Dual Paring】Upgraded Bluetooth 5.0 chip is built in for stable connection and fast transmission. The Bluetooth AUX is compatible with most Bluetooth devices, such as iPhone, Android Smartphone, iPad, Laptop, etc. Support to connect 2 Bluetooth devices simultaneously, simply pause the current playback device and play the other one to switch music sources. 【Long Battery Life & Type-C Charging】This AUX Bluetooth receiver works up to 10 hours during normal use. And it can be fully charged in just 2.5 hours by using the Type-C charging cable (included in the package). More convenient, this Bluetooth car adapter for music can also be used while charging. PS: if the battery is full, then indicator light won't turn on when try to charge.