Descripti Bluetooth V5.0: The latest Bluetooth 5. 0+EDR, higher performance, lower power consumption and wider compatibility. Long Working Time: -in 1200 mAh battery, 1000 hours of battery life. Support & Assistant: One button to activate, distraction free driving. Auto Power Built-in sensor, the device turns itself on when your car door opens and turns itself off when the bluetooth disconnects. Connect to 2 Phones: With the advanced multipoint connection technology, support two mobile phones online at the same time. Specificati Transmission rate: 100Mbps Effective working : 10m Bluetooth standard: 5.0 Working frequency: 2400MHz Product Size: Body: 13x6.5x3cm/5.12x2.56x3inch Power cord length: 25cm/9.84inch Material: Package Includes: 1 Piece Car Bluetooth Speakerphone Kit Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful shopping!