Caution: 1.Please be sure to read this user manual before use of the device. 2.While using the device, all operation should strictly follow the instructions in this manual. 3.Keep device in place with enough air ow, and be left 5-10 centimeters distance away from other items. 4.Avoid placing the device near any heat source, like radiator, heater, cooker, or other heating device. 5.Avoid the power cable being stamped or squeezed, especially connector tip and corner position. 6.