Specification:Item Type: Men Electric Hair TrimmerMaterial: ABSBattery Type: 1 x AA Battery(Not Included)How To Use: 1. Instructions: Remove the cover and press the power button to open the machine. Keep the trimmer at a 45 degree Angle to the desired area and trim in the opposite direction as your hair grows. Continue trimming in the opposite direction of hair growth until the hair is cut off. Tip: For the cleanest hair removal, tighten skin with one hand while trimming.2. Plug/replace the battery: Make sure your machine is turned off and remove the cover. Holding firmly in the center of the machine, trim head toward your left hand. Rotate the battery compartment to expose the battery compartment. Remove old battery if necessary. Insert a new battery and insert the positive end of the battery into the body. To replace the battery, slide the base over and onto the battery. Turn the battery cover clockwise until the marks on the body matches the line on the gray battery cover. Package List:1 x Hair Shaver1 x Manual1 x Brush2 x Guide Comb