Cartoon Cute Astronaut Digital Display Charging USB Portable Small Mini Hand Warmer Durability Upgrade

Power supply mode:USB,Rated voltage:5,Rated power:3,Heating method:Electric Heating,Types of Hand Warmers:Hand Warmer,Brand:BoChuang,Model Number:Astronaut,Packaging volume:10*5*5,Color:White Astronaut Hand Warmer, Blue Astronaut Hand Warmer, Pink Astronaut Hand Warmer,Main sales regions:Japan and South Korea, Africa, South Korea, Japan, Europe, South America, Southeast Asia, North America, Northeast Asia, Middle East, Latin America, Europe and America,Does it have a built-in battery?:Built-in battery,Built-in Battery Capacity:2000mAh-4000mAh included,Product Net Weight:100G,Is it a patented source product?:No,Battery life duration:3-6 hours inclusive,Product Category:Hand Warmer