Rechargeable Hand Warmers Usb Power Bank Electric Pocket Warmer Features 1. scalding, explosion-proof. This mini hand warmer has a built-in intelligent protection system and is equipped with current, short-circuit and overload protection. 2. HAND WARMER & POWERBANK 2-in-1: This hand warmer really helps to warm up your cold hands and get circulation going, great for relieving aches and pains. Best gifts for friends and family in cold winter. 3. FAST WARM HANDS & 3 LEVELS: Press the switch and instantly release the heat for you. Quickly heat up double sides in seconds. Three levels of temperatures: Low: 104F, Medium: 122F, High: 140F of your choice. 4. LARGE BATTERY CAPACITY: 5200mAh capacity can provide full charge for common digital devices in the market, the blue light shows how much charge is left. 5. POCKET SIZE: Small and light. Convenient to carry anywhere with any pocket or bag while doing sports, fishing, hiking, camping, skiing. Specification Color: Blue, Silver Size: 9.7*5.3*2.2 cm Battery capacity: 5200mAh Input / Output: 5V 1.5A Package includes: 2 x Hand warmers 2 x USB cable