SLTY Heating Pads,5V 2A 8.5W Lightweight Electric USB Heating Heated Pads Set for Outdoor Winter Camping

Features: Mainly used for the heating of insoles,slippers to keep warm. This USB heating pad is 17.5 x 10cm,heating temperature is 35-50 degrees. Light in weight,easy to carry.It is safe and easy to use,and can be fixed around the sewing. Heating Film can be washed,bent,rubbed and folded. Specifications: Material:carbon fiber Color:black Maximum voltage:5V Power supply mode:USB Heating film:17.5 x 10 cm Heating temperature:35-50 degrees Use Method: First press the button after power on the pad,and it start to work at high temperature mode,red light is on and 100% voltage output,when you secondly press button,it turns to the middle temperature mode,orange light is on with 85% voltage output,it will turn to low temperature mode and turn on blue light once you press button again,outputting 70% voltage.It will turn off if you give a fourth pressing. Package Included: 1 pair x USB Heating Pad Note: Only in the insulated environment such as sewing between clothes or a quilt,it can be heated to about 35 to 50 degrees,and the heating time will be 20 to 40 minutes.