Made of excellent materials, durable and practical. This hand warmer has a simple and cute design. It is safe, effective, , warm in winter, and can be used as a portable power source. Warmth to your lover, friends and family, not only in your hands, but also in your heart, this is also a good gift. Features -Color: Pink. -Material: Aluminum, ABS. -Size: About 10.20X5.80X5.00cm/ 4.01X2.28X1.97in. -Input voltage: DC5V-2A. -Output voltage: DC5V-2A. -Working time: 4-8 hours. -Battery capacity: 5200mAh. - The shape design makes it easy to grasp, non-slip, more ergonomic, and comfortable to use. - Mini pocket size, light weight, suitable for pockets, handbags, backpacks, etc. - The appearance is cute, the surface is smooth, and the small and body makes it light in appearance. - Suitable for hunting, fishing, camping, hiking, skiing and other outdoor activities. - Creative multifunctional hand warmer, it is also a mobile phone charger, which can be used as a holiday gift. Package list: 1 x warmer 1 x data cable