Specifications: Charging voltage :5 V Rated power :6 W Battery capacity :4000 mah Features: Overheat protection, warm light, fast heating Size :11.8cm x 7.5cm x 5.5cm/4.65 "x 2.95" x 2.17 "(approx) Description: There's no need to wait for warmth, as this hand warmer sits comfortably on your hand and heats up quickly and evenly thanks to its ergonomic hand design. Thanks to the design of the nightlight, this hand warmer creates a cozy atmosphere and is also a rechargeable power bank that can be carried around in a small and cute way. Made of high quality ABS, aluminum alloy and electronic components, it is durable. The product is 11.8cm long, 7.5cm wide and 5.5cm high. This hand warmer is suitable for outdoor, office, home, etc. ----------------------------------------------------- heaterWarm handsElectric Heater Household Energy-saving Silent Household Appliances