Xiaohuolong Warm Hand Treasure Rechargeable Cute Cute Pet Double Sided USB Portable Explosion-proof Mini Winter Features: Small fire dragon design, dual color options for you to choose from You and I will have you like. Overheat protection mechanism, warm and worry free, intelligent aggregation chip protects core links, automatic power outage protection makes warmth safer Long press to turn on: click to turn on one blue light for low temperature range, click to turn on two blue lights for medium temperature range, click to turn on three blue lights for high temperature range, and then long press to turn off the charger. The red light remains on and off when fully charged. 5S fast heating, no need to wait for warmth, long-lasting warmth that fits the touch, and takes 5 seconds to warm hands. Product Description: Product adjustment: three speed adjustment Product model: BLK602 Input voltage: DC5V=1A Rated power: 5W Charging duration 2 hours Product color: pink, green Product material: ABS+silicone Product size: 10.5x7x2.5cm