Cold hands can really affect certain activities from typing to playing guitar. The Sanyo Eneloop Kairo Rechargeable Hand Warmer is the perfect solution for those of you who hate to have cold hands. Using a lithium-ion battery, the Eneloop Kairo (meaning Energy+Loop+Pocket Heat) is capable of up to 500 charges.
You can choose between high and low settings from 38˚C (102˚F) to 42˚C (109˚F) and the gadget completely charges in 3 hours. No word yet on price but the hand warmer is slated for launch sometime in 2010.