Techtree 3.4 Amp Dual USB Charger with Android Cable is compatible with all USB cable charging devices. Such as mobiles, and tablets as well. Its Intelligent circuit design can protect against short-circuiting, over-heating, over-currents, and over-charging, Charging stops when the battery is full. This charger is easy to install. This adapter allows charging at home, in the office, or in the hotel. Simply connect with your phone USB cable, and plug it into an electrical socket, then it starts working. Product Features: •CHARGE TWO DEVICES SIMULTANEOUSLY WITH DUAL USB PORTS. •STABILIZED OUTPUT & LOW INTERFERENCE. •OVER VOLTAGE PROTECTION.OVERLOAD PROTECTION. •OVER CURRENT PROTECTION. •SHORT CIRCUIT PROTECTION. •OVER HEATING PROTECTION. •POWER SURGE PROTECTION. •BIS APPROVED CHARGER WITH 9 MONTHS WARRANTY. •HIGH EFFICENCY IC WITH SYNCHRONIZED RECTIFIER. •REDUCED HEAT RELEASE BY 45% COMPARED TO A NORMAL CHARGER. •WORKS PERFECTLY WITH MOST BRANDS. Specifications: 1.INPUT VOLTAGE: 150 VAC-285 VAC, 2.INPUT FREQUENCY: 50/60 HZ, 3.OUTPUT VOLTAGE:5V, 4.OUTPUT CURRENT:3.4 AMP. DC, 5.OUTPUT POWER:17W , 6.OUTPUT RIPPLE & Noise:<200 MV, 7.WORKING TEMPERATURE: 28 DEGREE 8.SIZE: 70x45x26 mm.