The Lifesystems Hand Warmer is the perfect accessory to chuck in your pack on cold-weather adventures. The compact design takes up barely any room and provides hours of 360-degree warmth when called upon. It also doubles up as a power bank to help revive devices that are low on battery.Dual heat plates - 360-degree heatCompact design and easy to operate4 heat settingsHeats up in 10 secondsProvides 3-6 hours of heatPower bank functionMains or USB rechargeableCharge time from low to full: approx. 4 hoursLED indicatorsUSB cable includedCE certified/ ROSH compliantRecyclable