1.Bluetooth 5.0 and Noise Cancellation Technology: This car Bluetooth adapter uses the latest Bluetooth 5.0 chipset, you can get a stronger connection with less loss of sound quality. Meanwhile, CVC noise cancellation technology significantly reduces road noise, wind noise and other interferences during calls, providing clear voice quality 2.Safe Driving: Built-in HD microphone enables clear hands- calls and supports voice notifications for navigation apps. Safer and more convenient when driving 3.Dual Link: 3.5mm Bluetooth AUX receiver connects two devices at once and quickly switches between them, so you don't have to worry about missing any incoming calls while listening to your music 4.Long Battery Life: Built-in 200mAH Li-ion battery can work for up to 10 hours when Bluetooth assisted. It can be fully charged in just 2.5 hours using the Type-C fast charging cable. This Bluetooth music adapter can also be used while charging