Celestron Elements ThermoTank 3 Rechargeable Hand Warmer

Restore comfort and dexterity when out in the cold with the Elements ThermoTank 3 Rechargeable Hand Warmer from Celestron. The warmer will generate four hours of up to 113°F heat on a full charge. Its built-in 3000mAh lithium-ion battery charges via the included USB cable. Measuring 3.7 x 1.8 x 0.9" and weighing just 5.2 ounces, the ThermoTank 3 is a small piece of gear that will make a big difference when stargazing, hunting, or hiking in the cold.