Bluetooth car speaker for dual phones with auto on1、【Safe Driving】BT car speaker keep you focused on driving, hands free answering and double-click to redial,ensure safe driving without breaking traffic rules and less danger. 2、【Ideal Assistant for Driving】Support cell phone navigation, apps song play,support wake up voice assistant,voice announcement of incoming call number, voice reminder of low battery, voice prompt for BT connection. 3、【Auto On and Off】Intelligent control with built-in motion sensor.Automatically connect to your device as you open the car door. Auto-off when you\u0027re away. 4、【Support 2 Phones Simultaneously】Intelligent one to two multi-point connection, support two cell phone connection and online at the same time. 5、【East to Use】Just clip it to your car sun visor with clip and connect it with your phone via BT. It also can serve as a speaker on the conference table or a portable song player. 6、【Long Working Time】The BT 5.0+EDR technology provides lower power consumption and wider compatibility,standby up to 500 hours, 10 hours of continuous talk time, built-in charging and discharging conservation board,durable for long lasting use.