[DETAIL] Attention： 1. This foot grinder should not be used with excessive pressure on the skin, as this will prevent the grinder from functioning properly. Just lightly touch the stratum corneum of the skin for polishing and use. 2.If the machine cannot work when turned on, it may be due to the battery running low. It is recommended to fully charge the machine before testing. There is no charging indicator light when fully charged, and it takes 2 hours for the battery to fully charge. The foot grinder can be working during charging. 3. This product does not have waterproof function, and the machine cannot flush water. Only the grinding head can be removed and rinsed with water Description Working hours: 1 hour Charging method: USB Charging time: 2h Charging voltage: DC 5V Battery: 1200mAh Product Features 1. One click button 2. USB portable charging 3. Equipped with a grinding head replacement button, which can replace grinding heads of different thicknesses according to usage needs 4. Can remove dead skin, calluses, cracks, and hard skin [ATTRIBUTES] - Electric: No - High-concerned chemical: None - Power Source: Rechargeable Battery - Electric: No - High-concerned chemical: None - Power Source: Rechargeable Battery - Type: Foot Patch - Number of Pieces: One Unit - Origin: Mainland China - Item Type: Foot Care Tool