Bluetooth 5.0 and noise cancellation technology This car Bluetooth adapter uses a Bluetooth 5.0 chipset for a stable connection with minimal audio loss. CVC noise cancellation significantly reduces road and wind noise during calls for clearer voice quality. Safe driving and hands-free convenience Built-in HD microphone enables clear hands-free calls and supports voice notifications from navigation apps, helping you stay focused on the road. Dual Link for seamless device switching 3.5mm Bluetooth AUX receiver connects two devices at once and switches quickly between them, so you won’t miss calls while listening to music. Long battery life and flexible charging 200 mAh Li-ion battery provides up to 10 hours of use with Bluetooth enabled. Fully charges in about 2.5 hours via the Type-C fast charging cable. Can be used while charging. Use scenarios - In-car hands-free calls and GPS prompts: pair to your car’s 3.5mm AUX input for clear calls and navigation audio. - Two-device listening: connect two phones at once and switch between them without missing incoming calls. - Long trips: enjoy music or podcasts while driving, with the option to charge the adapter at the same time.