Let us work our personal babelfish on Sanyo's new Eneloop Kairo. Eneloop means "envelope," right? Kairo...Kairo means Cairo? Like Egypt? Ahh, these devices are an envelope of heat. And they're leaving Japan, heading Stateside in time for winter.

Coming in two different models, the pink and white egg-shaped KIR-SE1S is single-sided in heat, and gives four hours of warmtimes, whereas the rectangular silver or pink KIR-SL2S is double-sided and lasts between one to three hours. Available soon in the US for $34.99 and $44.99 each, O Frosty Ones. [Sanyo via Hot Hardware via Engadget]