TOFULS Professional Hair Clippers

charging voltage 5v 1Abattery voltage 3.7vcharging time 3 hoursuse time 3 hourscarbon steel & ceramic bladesthe packing includes USB charging cable, 4 precision combs(4-18mm) & also 4 inbuilt cutting length micro adjustments(0.5-2.5mm), a long comb, cleaning brush, oil & cape.corded & cordless use. when it runs out of battery, you can use it while charging.intelligent locking function, time function, charging function & oil instruction function are some of its unique features.there is a length setting button. Adjusting it to choose the hair length that you want to remain ranges from 0.5/1.2/1.9/2.5mm.the size of 4 combs are 4-6/7-9/10-12/16-18mm.