The ProActive Sport’s Rechargeable Hand Warmer is the last hand warmer you will ever need. This high capacity electric hand warmer will not only provide warmth, but also charges your portable electronic devices. The round edges and smooth shape make it comfortable to hold in your hands. Choose between 3 different heat settings. Turn the hand warmer on and place in your pocket for heat on the go. The ProActive Sports Rechargeable Hand Warmer is also great for heat therapy by allowing you to target specific achy muscles and provides instant relief. The included micro USB cable allows you to charge the hand warmer virtually anywhere. Ditch Disposable. Go Rechargeable.