FLASH CHARGER: Ultra-Fast charging travel adapter for Smartphones. Flash Charging Supported: Only charge 5 minutes, you can enjoy 2 hours of call time. Charge for 15 minutes, the battery will up to 75%, saving your time SMART BUILD CHARGER: Having a low voltage will maintain the temperature of the battery while it is being charged and does not heat up the smartphone as much as other fast charging technology. SAFETY AND DURABILITY: This wall charger has a variety of protection functions to prevent you and your device from being subjected to excessive current, overheating and overcharging. Durable adapters that have undergone bending tests can maintain good and long-lasting performance VOOC Flash charging output at 5V/4A is available for mobile phones equipped with VOOC Flash charging technology only. Non-compatible devices will charge at standard 5V/6A output. 7 Protection to Flash charge safely ( Over Charge, Over Discharge, Short Circuit, Over Voltage, Over Power, Over Current, Temperature )