Long Heating TimeConnect the battery case to the USB connector hides in the heated gloves pocket, press the on/off button, the battery box lights red.press the ON/OFF button of heated gloves, it is Blue light(100F/4.5-8.5H), press the ON/OFF button again, then it is Green light( 131F/ 3- 4.5 H), Press the ON/OFF button again, then it is Red light(140F/2-3H), press the ON/OFF light again, then the light is turn off and it will not heat.Recommended high quality rechargeable AA battery . Touchscreen Design and Anti-slip PU PalmThe electric batteries heated gloves have screen touch function, coated with conductive leather on forefinger, available to use electric devices like iphone, ipad, Android Phones without taking off heated gloves. non-slip PU material on the palm offer extra grip for driving and cycling, perfect for skiing, motorcycle, riding ect cold weather outdoor. Heated gloves can waterproof, but it can not used on underwater or completely soaked in water. Say goodbye to cold hands and bring you warmth in the cold winter Our Heated Gloves can provide cozy temperature, larger capacity and longer working time than others, especially the fingertips can give you more warmth, keep your hand warm and comfortable all day. Ideal for winter skiing, snowboarding, snowmobile, climbing, hiking, hunting, ice-fishing, daily working, walking your dogs or other work activities in extremly cold weather. How to use Take out the battery cases, put 4 AA batteries into the battery case.(NO BATTERY INCLUDED Connect the battery case to the USB connector hides in the gloves pocket. Turn on the power switchNO/OFF on the battery box, the indicator light turns red. Put battery cases back to the battery pocket in the gloves. Click the heat control button on the back of gloves to heat up the gloves, when it works, you will see the lights on blue (The gloves normally take about 1 minutes to heat up, to the hightest temperature for about 10 minutes). 3 Levels Temperature Control The battery Heated gloves liners use upgraded carbon fiber heating elements that covers whole back of hand, fingers and fingertips. Washing Instruction: Remove battery while cleaning or storing gloves. Use mild detergent to clean. Hand wash is recommended for more safety. If machine wash then it is recommended to use sack bag to wash it.