How to use : 1.Press the on/off button for 3 seconds to start massager. 2.Press the Vibration Mode button to switch different vibration patterns, and press Speed Levels button to control the intensity of the vibrator. 3.Use the massager to relieve tension and relax tired muscles by pressing the massage head into or against different areas of your body. 4.The massager is water resistant and can be used in the shower or bathroom. (DO NOT SUBMERGE.) Charging : 1.When the massager's vibration is weak, or does not working but the LED light is still on, please recharge. 2.Insert the D C plug into the DC Charging Port of the vibrator. 3.Insert the USB Charging Cable to a USB power outlet, The LED on the interface of vibrator light up and flashing to indicate it is charging. When fully charged about 2 hours, the LED light will stop flashing. Structure Description: : *100% waterproof *20 vibrations pattern *USB Rechargeable *Material: Silicone + ABS+ Metal *Max Noise level:<60DB