The pocket heater for warm fingers! The style king among hand warmers gives you a pleasantly warm feeling even in the greatest cold. The USB pocket warmer with an integrated lithium battery fits comfortably in any jacket pocket thanks to its very slim dimensions. The advantage over other hand warmers: consistently warm 40°C at the push of a button! And this lasts up to 4 hours per battery charge. Also very practical: you can interrupt the heating period at any time and turn the pocket warmer back on later if needed. The soft knitted pouch ensures optimal heat distribution and fits particularly comfortably in the palm of your hand. It even warms up the coldest hands!.