Certification : CEBatteries Included : YesCharging Time : 3HPower Type : RechargeableFunction : ExfoliatingUsage time : 120 minutesFeatures:1. The Electric Callus Remover gently & effectively buffs away your thick hard skin to reveal soft, smooth feet.2. Refillable roller head that spins 360 degrees for quick results on thick, calloused skin.3. Comfortable, Safe and effective to remove dead skin from feet/nails for the perfect pedicure at home.4. Here is also 2 Coarse roller heads for every package, you can use it after the original one is worn out.Specifications:Color:White/BlackWeight:0.28KGDemension:19.5*14*5.5cmPackage List: ( In the good box )1 * Foot care file1 * Fine grinding head1 * Coarse grinding head1 * Cleaning brush1 * Instruction1 * USB cableNote:- If you did not receive your order in time, please use AliExpress to contact me, I will provide you with effective solutions.Thanks for your understandings.- Because the time difference between countries, if sales person is not online,she will reply your email within 5-10 hours.