Brand New! Keep your hands warm this winter without wasting money on those costly disposables with this electric, Li-rechargeable hand warmer. Compact and light weight, this device provides heat up to 113° F and can last for up to 10 hours on 1 charge. Conveniently re-charges through any available computer USB port or AC outlet: USB cable and AC-adaptor both included! Specifications: Input Voltage: 110 VAC / 60 Hz Heat Temperature range: 100° F ~ 113° F Operating temp range: 14° F ~ 113° F Charging Time: 5 Hours (approx) 3 Color Choices: WHITE, PINK, or BLACK Input Voltage: 5 Volts - 1 Amp Dimensions (L x W x D): 3.57" x 2.16" x 17.32" Weight: (unit only) 3.175 oz. Features: Approximately 7 - 10 Hours of Heating Time per Charge Heat Temperature Range: 100° ~ 113° Li-batteries are Rechargeable up to 500 Times Power Indication Light Recharged from AC adaptor or USB power >