Description1.THREE CIGARETTE LIGHTER SOCKETS - Three sockets meet enough for GPS,dash cam simultaneous use of a variety of portable appliance in your 12V/24V vehicle.2.Smart USB Ports - 2-Port USB charging ports with 3.1A total output enables you to rapidly charge 2 devices simultaneously. with built-in Smart IC technology that can intelligently detect your devices to deliver its fastest possible charging speed3.Independent Power Switch LED Voltage Display- 3-hole independent switch with one button can cut off powerenergy-saving and devices protection. Monitor battery voltage in real time to protect the battery, prolong the service life of battery4.Multi-Protect safety system Long Cable- Built-in Safe fuse and smart recognition chip prevent from over-current, over-voltage, and short-circuit protection, ensure complete protection for you and your devices.5. 90 degree free rotation using posture by you ,70cm both the front and rear seats can be recharged by extending the power cord.