BalanceFrom auto talking technology - No more bending over to look at the readings. Just listen your weight. Ideal for Vision-impaired or the elderly * Audio On/Off switch - Turn on and off the talking feature for privacy or convenience. Tap activation is required to turn the scale on (TAPPING IS DESIGNED NOT EXTREMLY SENSITIVE TO AVOID ACCIDENTALLY TURNING ON THE SCALE) * Equipped with 4 latest version high precision sensors - Consistent and accurate measurements up to 400 lb. or 180 kg; Graduation increments of 0.2 lb./0.1 kg. Measure units are available in lb., kg and st. * Auto-calibrated and automatically turns off to conserve battery life. Runs on 2 AAA batteries (batteries included). A body tape measure is included for free * Sturdy tempered glass top and 11" x 11" platform. 100% BalanceFrom Satisfaction Guarantee and 2-year BalanceFrom warranty