Feature: 【Superior Blade】Precise steel cutter head is safe and sharp, not easy to heat up, ensuring efficiency and durability. 【Large Power】Large power ensure strong force for more efficient and stable hair clipping. Low noise working ensures comfortable using. Specification: Material: stainless steel, aluminium alloy, ceramics Power supply: USB rechargeable Power: 3W Voltage: DC5V Battery capacity: 600mAh Charging time: 2-3 hours Using time: Approx. 70 minutes Applicable crowds: both kids and adults USB cable length: 180cm±2cm Item size: 15x3.1cm Package Content: 1 x hair clipper 1 x USB cable 1 x cleaning brush 3 x limit comb(1mm、2mm、3mm)