【UPGRADE YOUR NON-BLUETOOTH AUDIO DEVICES】:Connect this car Bluetooth adapter to your non-Bluetooth audio devices (such as, car audio systems, home stereos, speakers, wired headphones, etc) via the 3.5mm AUX adapter, it will adds Bluetooth functionality to those non-Bluetooth devices. Just pair it with your phone, you can experience high-quality music via home stereos | 【BLUETOOTH 5.0 & INTELLIGENT NOISE REDUCTION TECH】:Bluetooth 5.0 chip ensures stable connection/fast transmission/wide signal range. The latest CVC8.0 Noise Cancellation and Digital Signal Processor (DSP) technologies eliminate echo and block out intrusive background noise (such as wind, traffic, or crowds), providing you with clear call sounds | 【HANDS-FREE CAR KITS】:Our Bluetooth audio receiver built-in microphone and one “MFB” button to answer/redial/hang up/reject calls. You can make hands-free calls. Bluetooth 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 | 【DUAL CONNECTION & AUTO CONNECTION】:The portable Bluetooth stereo adapter can be paired with 2 devices at the same time. You can switch between 2 devices for call or music. Once paired, the car receiver will automatically reconnect to your last paired Bluetooth devices as long as they are within the wireless range | 【EXCELLENT BATTERY LIFE】:The working time of this aux Bluetooth adapter is up to 16 hours when making calls or playing music. And it takes only 2.5 hours to fully charge the device by using a Type-C fast charging cable (Included in the package). In addition, this Bluetooth music adapter can be used while charging, which is very convenient. WOCBUY portable Bluetooth adapter is a good gift for old car owners without Bluetooth devices and speaker owners who lack Bluetooth function