<b>RUINUOKAI Rechargeable Hand Warmers is with you. Get ready for coming cold days. Designed for you! </b><br><br>Why Choose RUINUOKAI Hand Warmers?<br><b>Protect environment</b><br>Maybe you will choose the disposable hand warmers, but it expires soon,not environmentally, cannot be used repeatedly,o expensive cost! But our hand warmers are rechargeable and reusable and can be used a power bank,charge for your electric device.<br><b>Superior safety</b><br>Exquisite comfort, high-tech aircraft-grade aluminum and ABS plastic.Built-in intelligent protection system is provided with safeguard of power on, short circuit and over loading, etc.<br><b>Double-sided and 4 Heat Modes</b><br>Fast heating double sides in seconds,4 levels of temperature heating 95-98.6°F/104-107.6°F/118.4-122°F/125.6-131°F,1 button control, provide constant warmth for you, won't hurt your skin.<br><b>Hand warmer and power bank 2-in-1</b><br>5200mAh capacity battery can give a full charge to most digital devices, for iPhone , Samsung Galaxy, Nexus and other Android phone.Four-level indicator to remind you of the remaining charge and heating status.<br><br><b>Specifications</b><br>Capacity: 5200mAh<br>Output: 5V/2A<br>Input: 5V/2A<br>Product Size: 10.2*5.8*3cm(4in x 2.3in x 1.2in)<br>Product Weight: 145g(5.11oz) <br>Charging Time: About 2-3 hours<br>Working Time: 4-8 hours (The lasting time depends on external temperature and heat settings)<br><br><b>Features</b><br>Excellent Extraordinary Quality<br>Built-in Safety IC protect system<br>Double-sided and consistent warmth<br>Heat Up Within Seconds<br>Exquisite and Comfort<br>Ergonomic Design<br><br><b>WINTER IS COLD, WE ARE WARM.</b><br><b>WARM GIFT From RUINUOKAI. ENJOY COZY WARMTH WITH YOUR FAMILY.</b>