Enjoy Wireless Streaming MusicThis car Bluetooth-compatible adapter can be connected to non-Bluetooth-compatible car audio systems, home stereos, speakers, wired headphones via the 3.5mm AUX adapter; And equipped with a Bt 5.0 chip for stable connection / fast transmission / wide signal range. Just pair it with your phone and start listening to your favorite music Intelligent Noise Reduction TechOur Bluetooth--compatible audio receiver & transmitter adopts the latest Noise Cancellation and Digital Signal Processor (DSP) technologies, which can eliminate echo and block out intrusive background noise (such as wind, traffic, or crowds), providing you with crystal-clear calling sounds.Up to 10 Hours of Battery LifeThe working time of this aux Bluetooth-compatible adapter is up to 16 hours when making calls or playing music. And it takes only 2 hours to fully charge the device by using a fast charging cable (Included in the package). In addition, this Bluetooth-compatible music adapter can be used while charging, which is very convenient.Hands-free Calling & NavigationA built-in microphone and one "M" button to answer / redial / hang up / reject calls, help you make hands-free calls. And the Bluetooth-compatible audio adapter supports broadcasting voice notification from existed navigation App. You don't have to look down the phone on the move. Make sure you drive safely