Winter means a constant battle to keep hands warm and Sanyo has just released two new Eneloop Kairo portable rechargeable hand warmers that will do the job. The single-sided Kairo KIR-SE1S comes in white or pink, while the double-sided Kairo KIR-SL2S is available in silver or pink. Use them in or outdoors. Smaller than a deck of cards, the Kairo fits easily in a purse, pocket or backpack.

The 2 versions differ in that the single sided has an internal Lithium-ion rechargeable battery for more than 3 hours of heat and can be recharged up to 500 times, while the double sided version doubles as a battery charger and runs of two AA eneloop rechargeable batteries. At $35 for the one-sided and $44.95 for the double, your hands can stay toasty this winter!

The “Kairo” rechargeable hand warmer is a portable and environmentally-responsible solution, bringing warmth comfort to everyday life. Micro-computerized control ensures safe and gentle, reliable heating to help maintain circulation and enjoyment in even the coldest environments.

Tags: gadget, eneloop, sanyo+eneloop+kairo, rechargeable+hand+warmers