Hi, I'm Jam! Jelly and I are visiting our friends in Frosty Forrest. It's a lot of fun here but, brrrr, it's so cold! Luckily, we have our Rechargeable Hand Warmer to keep us feeling nice and toasty! There's even a built-in power bank so we'll always have charging power on all our adventures. A powerful 4,000 mAh rechargeable battery charges our devices in no time at all. Isn't that sweet?