Wireless Charging Straight Hair Comb For Household Use $ 37.75 Product information : Diameter of heat conductor: 21mm-30mm. Product category: straight curly hair comb Power supply mode: wireless (lithium battery) Material of heat conductor: ceramics Applicable hair quality: universal Color: gray Shell technology: spraying (UV paint, rubber paint, metal paint, piano paint, pearl powder) Rated power: 35w Rated voltage: 3.7 Additional functions: rechargeable Charging method: USB Size Information: Size: 236x35.5mm Packing list: Host 1, instruction manual 1