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 that provides safeguards against power-on, short circuit, and overloading. 2. HAND WARMER & POWER BANK 2-in-1: This hand warmer helps warm cold hands and promotes circulation, ideal for temporary relief of aches and pains. Suitable as a gift for friends and family during cold weather. 3. QUICK WARMING & 3 HEAT SETTINGS: Press the button to instantly generate warmth. Rapidly heats both sides within seconds. Three temperature settings: Low: 104°F, Medium: 122°F, High: 140°F. 4. HIGH-CAPACITY BATTERY: 5200mAh capacity can charge mainstream digital devices. Blue LED indicator shows remaining battery level. 5. PORTABLE DESIGN: Compact and lightweight. Easy to carry in any pocket or bag during outdoor activities such as sports, fishing, hiking, camping, or 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