Graphene Hand Warmer Waterless Hot Water Bottle USB Hand Warmer Double Sided Charging Constant Temperature Electric Heating Explosion Proof Electric Blanket ✿Feature: ✿Quantity: 1pcs ✿Material: Plastic ✿Color: Beige ✿Product size: 28x25x5cm / 11.02x9.84x1.96in ✿Packing size: 28.5x25.5x5cm / 11.22x10.03x1.96in Net weight: 128g / 0.28lb ✿Gross weight: 293g / 0.64lb ✿Power supply: USB ✿Voltage: 5V ✿Power: 5W ✿Gear adjustment: long press to turn on, first gear 55°C, second gear 45°C, third gear 37°C, long press to turn off. ✿Product Description: ✿Efficient and fast heating technology: Using advanced USB charging and graphene heating technology, this hand warmer can heat up quickly in a short time, bringing instant warmth to your hands. Graphene, as a material with excellent thermal conductivity, ensures even heat distribution, allowing warmth to cover the palms and backs of your hands, away from the cold. ✿Safe design: The waterless design is a highlight of this hand warmer, which completely eliminates the hazard of leakage and scalding that may exist in traditional hot water bottles. At the same time, the built in intelligent temperature control system can accurately control the temperature, avoidoverheating, and ensure sheer safe during use. Both adults and children can enjoy warmth with peaceful of mind. ✿Portable, light and easy to carry: The small cylindrical design and soft material make this hand warmer easy to hold, very easy to carry. Whether in the office, at home or outdoor travel, just connect the power supply through the USB port to enjoy warmth anytime, anywhere, and let the warmth follow you. ✿Long lasting insulation effect: Thanks to the efficient thermal conductivity of graphene, this hand warmer can provide long lasting warmth after being fully charged. Even in the cold winter, it can effectively resist the cold, keep your hands at a comfortable temperature, and avoid the trouble of frostbitten hands and feet. ✿Environmental friendly and energy saving concept: The USB charging means is convenient and fast, embodies the concept of environmental friendly and energy saving. There is no need to frequently replace batteries or hot water, which reduces resource waste and environmental friendly. Package Content: ✿1 x Heating Hand Warmer ✿ ✿ Quantity: 1pcs ✿ Material: Plastic ✿ Color: Beige ✿ Product size: 28x25x5cm / 11.02x9.84x1.96in ✿ Packing size: 28.5x25.5x5cm / 11.22x10.03x1.96in Net weight: 128g / 0.28lb