HUADA Rechargeable Heated Insoles for Men & Women - Electric Foot Warmers for Winter, Hunting Boots, Sneakers - Perfect for Ice Fishing, Hiking & Camping (Size M)

Product name: heating insoleVoltage: 3.0V-4.2VBattery capacity: 3900mahInput: AC/100-240v 40- 60HzOutput: DC/4.2v-5v 500*2Gear position: high temperature, medium temperature, low temperatureApplicable parts: soleTemperature: 150°F, 130°F, 113°FUse time: 6.5 hours, 9 hours, 16 hoursApplicable people: people who are cold and afraid of cold, outdoor workers, travellers in severe winter

Lightweight insoles: Our insoles are light in weight, comfortable to wear and do not rest on your feet

Engineering design: beautiful, heat preservation, breathable, promote blood circulation and other health care effects.

Comfortable and breathable: invisibly fits the human body curve, fits the legs, suitable for all kinds of people, soft and comfortable!

Fast heating: 113F-150F high temperature heating, using high-quality heating wire, high heating temperature, long service life.

Wide range of applications: Our heated insoles are suitable for many occasions, such as hunting, skiing, motorcycles, mountaineering or walking.