1、Convenient Talking: The hands free speakerphone uses bluetooth 5.0 technology to make calls and use for voice assistant with ease while driving, also support for navigation prompts and music playback. 2、Dual Phone Connection: The back clip Bluetooth speaker can connect two smartphones simultaneously and stay connected for seamless navigation, calls, and music playback. 3、Enhanced Driving Experience: The Bluetooth speakerphone supports Bluetooth broadcast for navigation prompts and music playback, freeing up your hands for safer driving. 4、Long Endurance: Equipped with a 600mAh lithium battery, this Bluetooth phone speaker offers up to 500 hours of standby time, ensuring longevity for your on the go travel. Built in charge and discharge protection board, Type C universal charging interface, allowing for safe charging. 5、Versatile Design: With a back clip design, the phone speakerphone can be easily mounted on the sun visor without taking up space, making it suitable for various scenarios.