Safe Rechargeable - This enema bulb is charged by DC hole. When charging, please insert the charging pin vertically into the DC hole to ensure correct connection. It takes half an hour to recharge and lasts 70 minutes. The steps to use: 1. Unscrew the bottle counterclockwise. 2. Fill enough water and tighten the bottle clockwise. 3. Insert the nozzle into your body slowly. 4. Press and hold the power button for 2 seconds, the enema bulb kit entering standby mode. Single-click the button, the enema bulb will spray water automatically. Short press the button to control the spray intensities that you favorite! Note: Please do not use coffee as an enema liquid, avoid coffee grounds clog the nozzle. It is best to use water without obvious particles for enema.