Graphene heating is used for heating, which is warm but not hot, light and thin, flexible, and heats up quickly.Intelligent 3-mode temperature adjustment to meet various needs.It will heat immediately after on, and the temperature will rise to 50 quickly.Universal USB interface, convenient for charging.Water and electricity separation design, can be washed at will, dirt and washing resistance, no worry about lint.Small size, easy to carry.Name: Smart USB Hand WarmerRated : 10WRated voltage: 5VFunction: 3 heating modesBattery life: 6-8 hoursApplicable scenarios: home, school, office, car trip, outdoor camping,fishing and more.Heating elements Do not remove and washColour:pinkMaterial:down cottonPackage Contents:1 x Smart USB Hand WarmerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.