Charger For Warming Hands (7,500 mAh) is a functional, innovative product integrating warming hands and charging of power banks with the unique shape of a water droplet. Its aluminum surface is processed with metal oxidation and laser engraving, making users feel comfortable; the 7,500 mAh huge capacity allows long-lasting life. The three-dimensional thermostat system can quickly warm hands to 50 °C. The built-in temperature probe turns the hand-warming function automatically off when the heating surface temperature reaches 55 °C. Additionally, its built-in intelligent protection system can effectively prevent overcharge and short circuit.