【Enjoy Wireless Music Streaming】This AUX Bluetooth receiver adds Bluetooth functionality to a variety of non-Bluetooth devices via a 3.5mm AUX cable, such as non-Bluetooth car systems, home stereos, speakers, and wired headphones. Just pair it with your phone and then start experiencing high-quality music! 【HI-FI Music & Ultra-Clear Calls】Our Bluetooth car adapter uses a professional HD audio decoding chip, allowing you to enjoy high-quality music streaming. CVC8.0 noise reduction technology helps eliminate echo and block annoying background noise, providing you with clear call sounds. 【Hands-Free Calling & Navigation】There is a built-in microphone for hands-free calling and an \"MFB\" button to answer/hang up/reject/redial calls. This AUX Bluetooth receiver also supports sending voice notifications from existing navigation apps. No need to look down at your phone, ensuring driving safety! 【Bluetooth 5.3 & Dual Pairing】Upgraded Bluetooth 5.3 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 connecting 2 Bluetooth devices at the same time, just pause the current playing device and play the other to switch music sources. 【Long Battery Life & Type-C Charging】This AUX Bluetooth receiver works up to 16 hours with normal use. And it can be fully charged in just 2.5 hours with the fast-charging Type-C cable (included in the package). More conveniently, this Bluetooth car adapter for music can also be used while charging. PS: If the battery is full, the indicator light will not turn on when you try to charge.