Oral-B Complete Deep Clean 3in1 CLEAN PRO ADVANTAGE Battery Toothbrush Oral B 2More cleaning action in every stroke. Micropulse Bristles - Clean deep between teeth Indicator Bristles - Fade half-way to signal time to replace your brush head Replace your brush head every 3 months to maintain a superior clean Removes plaque for a healthy smile Oral-B ProAdvantage Deep Clean Battery Toothbrush, 2 Handles, 3 Brush Heads, 4 BatteriesWarnings:Warning Text: This appliance is not intended for use by children or persons with reduced physical or mental capabilities, unless they are supervised by a person responsible for their safety. If the product is dropped, the brush head should be replaced before the next use even if no damage is visible. Use this product only for its intended use as described in this manual. Do not use attachments not recommended. If you are undergoing treatment for any oral care condition, consult your dental professional prior to use. Do not use on children under age 3.Directions:Instructions: How to Replace Your AA Battery: Replace the batteries when the brush is dry. Hold the brush firmly and press both dots above the battery cap at the base of the brush. Gently pull to remove the cap and replace the batteries as indicated. Clean the area around the rubber ring and replace the cap. Ensure the cap clicks securely into place. Replace brush head every 3 months or sooner if brush head becomes loose due to damage.