Car Bluetooth Receiver, Bluetooth 5.0 Jack Adapter for Home Stereo/Speakers/Wired Headphones, Aux Bluetooth Receiver Hands-Free Calls, Dual Connection, 16H Battery Life 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, stereo systems, 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 uses a professional HD audio decoder, allowing you to enjoy high-quality music streaming. CVC8.0 noise reduction technology helps eliminate echo and block distracting background noise for crystal-clear calls. Hands-Free Calls & Navigation: A built-in microphone enables hands-free calls, and an "MFB" button lets you answer, hang up, or reject calls. This Bluetooth aux connector also supports voice broadcasts from existing navigation apps. No need to look at your phone, ensuring safe driving! Bluetooth 5.0 & Dual Pairing: Upgraded Bluetooth 5.0 chip is built-in for stable connection and fast transmission. The Bluetooth connector is compatible with most Bluetooth devices, such as smartphones, iPads, laptops, etc. Supports 2 Bluetooth devices simultaneous connection, just pause the currently playing device and play the other to switch music source. Long Battery Life & Type-C Charging: This car 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 music adapter can also be used while charging. PS: If the battery is full, the indicator will not light up when you try to charge.