This item will be listed until March 14th. If you wish to purchase, please consider it soon. This is the "Nukunuku" rechargeable eco-hot water bottle in the Shima Enaga (Long-tailed Tit) design. It's cordless, so you can carry it anywhere and use it repeatedly. Unlike traditional hot water bottles, there's no need to bother with refilling water. Just charge it for 15 minutes from an outlet, and the warmth lasts for up to 8 hours. You can use it as a hand warmer on your lap, as a foot warmer in bed, or even warm your feet by placing them on top of the hot water bottle to create a makeshift kotatsu. It's also great that if you charge it for 15 minutes while you're bathing or before going to sleep, the warmth will last until morning. The cover is also washable. Charging time: approx. 15 minutes Maximum usage time: 8 hours Reusable Cordless for easy portability I am already using one this season and am offering a spare, brand new, unused, and unopened item that was purchased for my family. The 3rd photo is for reference and shows the one I am currently using. The item being offered is brand new, unused, and unopened.