Features:1. 1 pair of remote heating insole can be cut.2. Can be cut according to their insoles size but not cut to the smallest yards or less.3. With easy to use, high fever temperature, long service life and so on.4. The use of carbon fiber material, in the power of heating at the same time, carbon fiber issued far infrared, play a role in promoting blood circulation and other health effects.5. Slim more warm, low voltage, constant temperature heating. Heat a wide area, heat evenly.6. Waterproof seal design, chips, batteries are waterproof design, do not worry about sweat caused by static electricity, but also simple washing.7. Heating efficiency, intelligent remote control, electronic control part of the remote control one-to-one control insole transfer, shutdown, high, medium and low three stalls.Working Principle:-By the battery output DC (voltage and current) through the temperature control switch regulation directly to the heat carrier at both ends of the cable pressure to the heating carrier inside the heat carrier is pressurized heat energy to convert heat to release.Instructions for use:-Connect the cord and charger to the insole.-The battery is fully charged before use, the charger is lit red indicating charging, when fully charged, the lights turn green.-And then according to their own needs through the smart remote control buttons to adjust the temperature.Description:Itme Type: Remote Heated InsoleMaterial: Composite carbon fiber materialColor: RedSize:-Large size: Approx. 31x11x2cm/12.2"x4.33"x0.78",-Small size: Approx. 27x10x2cm/10.6"x3.93"x0.78"Rated voltage: 3.7VCharging time: 5-6hInsole battery capacity: 1800mAhCharge cut-off voltage: 4.2VDischarge cut-off voltage: 3VBattery life: 300 timesCharging method: constant current and constant voltage (CC / CV)Input: AC100-230V 40-60HzOutput: DC4.2V 500mA * 2Suitable code number: 39-47 yardsPackage Included:1 X Pair of Heated Insole1 X Remote Control