Are you worrying about your teeth debris and food residue from between teeth or below the gumline? Are you feeling unconvenience to carry your toothbrush when date or travel?Now say goodbye to all above problems just choose our power dental water flosser.Feature 1. Using air pressure tecnology to generate strong water stream flossing to clean. 2. Cordless and without battery to blasts away food debris between your teeth. 3. Also can work great with braces and floss effectively. 4. Add a little mouthwash into the jet for a cleaner feeling is avaiable. How to UseStep1: Simply twist the tube bottom by counterclockwise and remove the bottom tube. Step2: Fill water into the tube and pull the tube bottum on ensure the sillicon circle connect well. Step3: Hold the water flosser and open your mouth keep the nozzle at 45°along the teeth or gums. Step4: Press the green bottom to activate water jet to clean food debris between teeth and gums. AttentionNot to be used for children under 6 years old.Parents supervision required for children under 12 years old. Specification: Item size: 21 * 3 * 3cm Package included: 1x Dental Water Jet Tips: Before using water jet please check User Manual. Disconnect the reservoir and submerge the pump housing tube and nozzle completely in water (especial ensure the sillicon circle connect well or it will no power/ leaks ). Press the button for at least 60s until it starts to bubble. Then lift the end of nozzle above water and press button to ensure that the unit working properply and has steady jet stream. If water pressure is not enough please hold the nozzle press the button several times to loosen the nozzle.