Features 1. SAFE AND COMFORTABLE: Made of high-tech aircraft-grade aluminum and ABS material, anti-scald, explosion-proof. This mini hand warmer has a built-in intelligent protection system with safeguards for power on, short circuit, and overloading. 2. HAND WARMER & POWER BANK 2-in-1: This hand warmer helps warm cold hands and improve circulation, ideal for relief from aches and pains. Great gift for friends and family during cold winter months. 3. QUICK WARMING & 3 TEMPERATURE LEVELS: Press the switch to instantly generate warmth. Rapidly heats both sides within seconds. Three temperature settings: Low: 104F, Medium: 122F, High: 140F. 4. LARGE BATTERY CAPACITY: 5200mAh capacity provides enough power to fully charge most mainstream digital devices. Blue LED indicator shows remaining battery level. 5. POCKET-SIZED: Compact and lightweight. Easy to carry in any pocket or bag, perfect for outdoor activities such as sports, fishing, hiking, camping, and skiing. Specifications Material: Aluminum alloy, ABS Color: Blue, Silver Size: 10.2 x 5.8 x 2.3 cm Weight: 150 g Battery Capacity: 5200mAh Input / Output: 5V 1.5A Package Includes 2 x Hand Warmers 2 x USB Cables 2 x User Manuals