1、Portable to carry, suitable for using in classroom, office, library, tea house, home, etc. 2、With exquisite workmanship, it has smooth and comfortable hand feel. 3、4000mAh large capacity, let you rest assured to use, also can be used as a cute mobile power bank for your mobile phone. 4、7s heats up quickly, it can last about 4-6h of heatness to keep your hands warm in cold winter. 5、Adopts premium ABS, silicone and aluminum alloy material, safe, sturdy and durable. 6、One key control, two speeds temperature adjustable, with LED indicator light, convenient and practical. Condition: 100% Brand New Item Type: Hand Warmer Material: ABS+Silicone+Aluminum Alloy Size: Approx.9.5x8x3cm / 3.7x3.1x1.2in Weight: Approx.240g/8.5oz Rated Power: 10W Heating Temperature: First Gear: 47-52℃, Second Gear: 55-60℃ Heating Time: 4-6h Input/Charging Time: 5v/2A 2-3h Output (Mobile Power Supply): 5v 2A Battery Capacity: 4000mAh LED Lights: The white light is bright for the hand warmer and the white light is blinking for the warm hand. The red light flashes to a low battery state. The red light is blinking and charging. The red long light is fully charged. The blue light breathe flashes for the mobile power output state. 1 x Hand Warmer 1 x Intruction Manual 1 x USB Cable 1 x For Android Adapter 1 x Cloth Bag