UEB 4in1 Car Charger with 2-Port Dual USB, 25W 5A LED Voltage Current Temperature Detector Monitor, 360 Degree Rotatable, Car Charger Cigarette for Cellphone, Mp3, Mp4, Tablet (Red) Dual USB: charge two mobile devices simultaneously Rotatable: 360 degree rotary horizontal and 90 degree rotary vertical, makes it convenient to use fixed and used Rapid charging: 5A/25W Dual port usb makes you charge your device fastly, for example tablet, smartphone, camera, mp3 and so on Multi-function: display the charging voltage ,current,temperature inside the car, when inserted into the cigarette lighter,display the voltage of the car battery Voltage overload protection: this fuction can protecte your device from being damaged timely