♨ Cold air is coming, are you ready?How long have these problems bothered you?☛ Will electric heating cause electric shock ?☛ Will it be burned if it is continuously heated ?☛ Does prolonged heating hurt the body ?Solve your problems♡ USB intelligent temperature control / three gear intelligent temperature control♡ No radiation safety♡ No electric shock♡ 1 minute quick heat♡ Power bank♡ Long battery life♡ Washable♡ Far infrared fever♡ Thin and light♡ Warm and comfortable♡ Anti-drilling process♡ energy-saving design✔ Chinese medicine says:The foot is the second heart of the human body, and you need to warm your feetFor people:Cold feet and cold discomfortMiddle-aged and elderlyOutdoor workerFrailOutdoor sports enthusiastsPursuit of trendy men and women