Features:
* Charges USB compatible devices including; mobile phones, Mp3 players, tablets, cameras, etc.
* Dual-sided heat up to 120°F / 50°C operating temperature with three (3) heat settings for adjustable and comfortable warmth
* Battery and heat indicator lights
* Rechargeable 4,400 mAh lithium-ion battery (included) for lasting reliable warmth - up to 3 hours run time

Benefits:
* Easily fits in & out of pockets
* Reusable, less waste than disposable warmers
* Perfect for staying warm inside offices or extended outdoor activities
* Plenty of heat to keep your hands warm in cold weather
* Quickly shows the selected heat settings & battery charge remaining
* Provides continuous gentle warmth on both sides

Specs:
* Height: 3.63 in
* Width: 1.63 in
* Depth: 0.59 in
* Weight: 2.2 oz / 62 g