"Celestron Elements ThermoTrek Brand New Includes Two Year Warranty, The Celestron 48011 tay warm on the trail with the ThermoTrek hand warmer
The 4400 mAh lithium ion battery provides up to an impressive 6 hours of continuous heat on a full charge. ThermoTrek heats up quickly and reaches a maximum temperature of 113 degrees Fahrenheit (45 degrees Celsius)Unlike chemical hand warmers, ThermoTrek 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 ThermoTrek perfect for cold weather excursions like cross-country skiing and mountaineering 48011 Features: Input voltage : 5V- 500 mA, status LEDs : (1) charging, (1) in use, Temperature max : 40 to 45 C (104 to 113 F), End caps : Silicone caps for protection, Weight (oz): 5.22 oz (148 g), Replaces Model 48010"