How To Use:1. Slide switch to ON position. light will turn on.2. Use on clean. dry skin. pull skin tight and move in small. circular motions.Attention: It is normal for hair removal head to become warm with useFor Optimal Results:* Use on clean and completely dry skin with no cream or cosmetic residue.* Pull skin tight and move in small. circular motions.* If unit begins to slow down. clean head of hair residue.* If unit is still running slow. cheange battery.* It is normal for skin to appear red immediately after use due to pressure and friction applied.Note: The package don't include the battery.