Multifunction Hand Warmer USB Wristband New Smart Temperature Control Hand Warmer Heating Quickly Features: Built-in new thermostat for fast heatingConstant 40'C heat packs to further fatigue Soft silicone synthetic thermostatic heating pads , soft wrap-around fitHeat seeps in and feels as soft as a feather No need to hold it in your hand Keeps you warm at work,Upgraded Thermostat Chip No Need To Wait For Warmth 360° surround heat black technology Warms your hands,4-position key adjustmentVisualization of temperature 【PERFECT GIFT FOR WINTER】 Hand warmers to surprise your parents, kids,, family, girlfriend and anyone you cared about. With a for Christmas, Birthday, Thanks Giving Day, Valentine’s Day and such important festival. This high-tech warmer gift not can make her/his heart warm, but also her/his hands. 【Portable 】Handy carrying anywhere with any pocket or bag while sporting, fishing, hiking, camping, skiing, travel or play . Also a perfect reusable hand warmer solution in cold weather for a or office worker. Product Description: Pseudolaric : Smart Hand Warmer Product Power : 5 W Temperature Regulation : 4-speed Operating : key Operation Product Input : DC5V / 1A Battery Capacity : 2000 mah : Up To 300min Product Material : High temperature silicone + plastic charging Time : 3 Hours Color : Orange / Purple / / Black / White Package Include: 1x hand warmer Note: Manual measurement, please allow slight errors on size. The color may exist slight difference due to different screen displays. Versatile Climate Control: This cold and hot air fan offers versatile climate control, allowing users to enjoy both cooling breezes and comforting warmth with ease. Adjustable Fan Speeds: With multiple fan speed settings, this device provides customizable airflow, catering to individual preferences for a personalized and comfortable environment. Energy-Efficient Heating: The built-in heating functionality ensures efficient warmth without compromising on energy consumption, making it an eco-friendly choice for maintaining a cozy atmosphere. Remote Control Convenience: Equipped with a user-friendly remote control, this appliance allows users to effortlessly adjust settings from a distance, providing convenience and ease of use. Safety Features: Designed with safety in mind, this cold and hot air fan includes features such as overheat protection and tip-over shut-off, ensuring a secure and worry-free operation.