Features: 5000mAh capacity, dual-port output design: professional design to meet different heating products (heating eye masks, electric gloves, hats, electric knee pads, electric socks, electric waistbands), efficient heating, heat storage and warmth, fearless of winter. Large capacity power for daily needs: small size, 5000mAh lasts all day. Small and delicate, also very light: the same capacity, smaller volume, a finger can gently lift, more lightweight. Adopting smart polymer battery: 5V ultra-low voltage, special charging treasure for fever clothing Intelligent protection, multiple intelligent safety protection: specially developed for heat products, intelligent protection chip, always guard your safety, long charging not hot. (Overcharge protection, over-voltage protection, safety battery cell, temperature protection, over-current protection, short circuit protection) Wide range of applications: suitable for heating gloves, heating socks, heating knee pads, heating scarves and other heating products. Product parameters: Capacity: 5000mAh USB output: 5V/2A Type-C output: 5V/2A Type-C input: 5V/2A Case material: plastic Cell type: polymer lithium-ion cell Charging power: 5W