1-Please charge at the proper voltage (220-240V 50/60hZ). A charging period of 8 hours is required before the application can be used for the first time. The appliance is ready to use after it has been charged. It can be used with or without the attached guide comb; simply slide it into the cutting head until it clicks into place. The appliance must be turned off while the guide comb is attached or removed.- 2-After using the appliance, remove it from the charging stand and replace it. To preserve the load capacity of the storage battery, we recommend using it until it is empty before reloading. Changing the cutting head.- 3-Trimmers/clippers, charger, oil bottle, cleaning brush, and cutting heads are included in the box.- 4-Target Gender: Unisex; Blade Material Type: Stainless Steel; Unit Count Type: Count- 5-Unit Count Type: Count; Blade Material Type: Stainless Steel; Target Gender: Unisex