smart handwarmer,USBcharged,lithium battery,excellent equipment, popular,convenient,durable ,7hours warming,light,portable Rechargeable USB hand warmer YOYYO-85 Indicator light attachment,convenient to usesample price:16.01usd/pc Features:1.Beautiful,light,portable2.Heart design against the hand,using friendly,comfortable.3.The most advanced heating pattern,high efficiency,large heating size .4. ...