Viatek CZY01 Cozy Cup Heating Element Black Features: Cozy Cup is like a portable electric blanket for your favorite store-bought hot beverage! Just slip your cup in, hit the button, and you're ready to go! The sleeve begins heating in seconds and keeps warming for over an hour, so feel free to savor your hot beverage as long as you like. The flexible shell with elastic band ensures a perfect fit regardless of the cup size. Soft comfort grip stays cool to the touch Super lightweight and flexible design stores easily in a backpack, purse, or anywhere! Kapton Flexible Heating Element used by NASA Quick charging lithium battery with 2.5 year estimated life Element operating temperature: 150 F Operating time on single charge: 70-90 min
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