Cute Cartoon Penguin Polar Bear USB Rechargeable Electric Hand Warmer

Automatically detects and adjusts the charge and discharge voltage and current, protect the safety of the user. The cute cartoon penguin polar bear shape is a portable and small hand warmer to warm your whole winter. Output power via USB port, plug in the data cable to achieve portable charging at any time. High quality Equipped with a special lithium-ion protective plate to effectively prevent overcharging, over-discharge, over-current, short circuit, etc.