HNK Hair Trimmer, Before using please read instruction carefully. Notes before using : This is rechargeable hair trimmer is latest product which is supplied for professional hairdressers to clip or trim hairstyle. Before using for the first time, Charge 1.5 hours fully so that the inside rechargeable batteries are activated. How to use : This hair trimmer can be used in both cord & cordless. Put the adapter connected with the jack of the battery pack lies at the bottom of the machine then put the adapter pins with connected power ( pay attention to the voltage, please check the voltage with on the name plate of adapter.) The Charging time is for 1.5 hours. When it fully charged it can be used for more than 90 minutes. During charging, the indicator light shows red. Push the switch button to ON then it can be used. How to use comb attachment : Fix the comb on the top of the trimmer by pushing in it's holders. Adjust the number for which shape or style you want to cut the hairs. This Super power trimmer gives you the very stylish and new look to your hairs, mustaches & Beard.