【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 audio systems, home stereo systems, speakers, wired headphones. Pair it with your phone and start enjoying high-quality music! 【HI-FI Music & Ultra-Clear Calls】Our Bluetooth car adapter uses a professional HD audio decoder chip, allowing you to enjoy high-quality music streaming. CVC8.0 noise reduction technology helps eliminate echo and block annoying background noise, giving you clear calls. 【Hands-free Calls & Navigation】There is a built-in microphone for hands-free calls and a "MFB" button to answer/end/reject/redial calls. This AUX Bluetooth receiver also supports sending voice messages from existing navigation apps. You don't need to look down at your phone, ensuring driving safety! 【Bluetooth 5.3 & Double Pairing】Upgraded Bluetooth 5.3 chip is built-in for stable connection and fast transmission. 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, simply pause the current playing device and play the other one to switch music sources. 【Long Battery Life & Type-C Charging】This AUX Bluetooth receiver works up to 16 hours under normal use. And it can be fully charged in just 2.5 hours using the Type-C fast charging cable (included in the package). More conveniently, this Bluetooth car adapter for music can also be used while charging. PS: If the battery is fully charged, the indicator light will not light up when you try to charge.