Read the trimmer manual before use
Charge the trimmer or install fresh batteries
Attach the correct guard or comb length
Clean and dry the area to be trimmed
Turn on the trimmer
Hold the trimmer firmly at the proper angle
Trim slowly against or with the grain as needed
Use short, steady strokes
Check progress often to avoid overtrimming
Turn off the trimmer after use
Remove hair from the blades and guard
Clean the trimmer according to the manual
Store the trimmer in a dry place