The Metro Fulfillment House scale has the ability to provide instant weight measurements, calculate body fat, body hydration, muscle mass and bone mass measurements, the Metro Fulfillment House 440 lb. Digital Bathroom Scale is the most advanced in bathroom scales. With Metro Fulfillment House Step-On technology, our scale will automatically power on. The Metro Fulfillment House bathroom scale includes built-in memory for individual user profiles. Each profile stores your personal data: weight, gender, height and age so that you and your family members can each track their progress. Our scale tracks a person"s age, height, gender and weight to accurately calculate advanced measurements. A well established method used to estimate body fat and hydration. The Metro Fulfillment House bathroom scale displays all your results, It utilizes sensors to capture weights up to 440lbs with accuracy. The scale turns off automatically to conserve battery life and runs on 2 included Lithium batteries for longer performance than AA and AAA batteries.