Electric Hand Warmer 2 in 1 USB Rechargeable Pocket Hand Heater

Features: Battery Voltage: 3.7V Product weight 215g Charging input: USB Input: 5V/2A Product size: 108x83x52mm/4.25*3.27*2.05 inches Power rating: 5.5W Product material: ABS fireproof/PC/LED display/aluminum alloy Keep warm time about:4-8h Capacity about:3000mAh Bullet Points: 1.Comfortable and cozy warmth: These hand warmers will make you feel comfortable and cozy in the cold winter days, as they generate heat without any dead angle, providing warmth from palm to fingers. They also have an ergonomic design that fits your hands perfectly. 2.Adjustable Temperature: With five-position temperature adjustment, you can choose the temperature that suits you according to the weather change. The hand warmers have a scientific temperature and fast constant temperature feature, ensuring a comfortable and warm experience. 3.Safe and reliable heating: Made of graphene material, these hand warmers have a special self-limiting temperature property that prevents overheating or burns. The