Feature:1. 5200mAh Battery: This rechargeable hand warmer comes with 5200mAh battery that allows you to charge phone, camera and tablet for many times.2. 3 Temperature Mode: This electric hand warmer provides 3 temperature modes that can be easily adjusted among 42, 47 and 52.3. Palm Size: This mini hand warmer with digital display function adopts palm size and cute bear style design, you can take it with you all the time.4. Durable Material: This battery hand warmer is made of reliable PC, ABS and silicone material, which is fireproof and skin friendly.5. Wide Application: This rechargeable hand warmer keeps your hands warm in sports, fishing, concerts, traveling, skiing, or in the office.Specification:Item Type: Rechargeable Hand WarmerMaterial: PC, ABS, SiliconeBattery Type: Lithium Battery (Inbuilt Battery)Battery Model: 18650Battery Capacity: 5200mAhCharging Time: 3 to 5 HoursHeating Time: 3 to 6 HoursStorage Temperature: Minus 20 to 60Heating Temperature: Maximum 52Temperature Mode: 3First Mode: 42Second Mode: 47 Third Mode: 52Product Size: Approx. 9 x 9cm / 3.5 x 3.5in ( Manual Measurement, Slight Error May Exist ).Package List:1 xRechargeable Hand Warmer1 x USB Cable1 x User Manual1 x Storage Bag