Description:Not only can be a hand warmer in cold weather, but also can be a powerbank for emergency, this product is multipurpose and convenient to use.With compact dimensions, this electric hand warmer, so it doesn't take up a lot of space in your bag, you can easily take it anywhere.Made with PC and aluminum alloy material, this hand warmer is solid and durable.The length of this product is 9cm, width is 9cm and height is 5cm.It is suitable for winter as it can be used as a double-side heating hand warmer.Item Name: Pocket Hand WarmerMaterial: Aluminum Alloy,PCFeatures: Portable, Lovely, Wide Application Heating Temperature: 45-60 DegreesBattery Capacity: 4000mAhCharging Time: About 3 Hours Using Time: 5 HoursMode: 2 ModesPower: 10WInput/Output: 5V-2ASize Details: Size: 9cm x 9cm x 5cm/3.54" x 3.54" x 1.97" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Pocket Hand Warmer1 x USB Charging Cable