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ThermoTank 3

Keep your hands toasty warm when out birding on a cold winter day.
Stay warm on the trail with the ThermoTank hand warmer. The 4400 mAh lithium ion battery provides up to an impressive 6 hours of continuous heat on a full charge. ThermoTank heats up quickly and reaches a maximum temperature of 45°C (113°F).
Unlike chemical hand warmers, ThermoTank can be recharged multiple times. Just plug it into the USB port on your PC or a compatible AC charger using the included cable. The rugged aluminum construction and protective silicone caps make ThermoTank perfect for cold weather excursions like cross-country skiing and mountaineering.
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