digital personal scale innovative battery-free technology can be recharged by repeatedly pressing the central button 5 mm thick tempered glass surface large LCD display measurement limit: 100 g to 150 kg BMI (body mass index) measurement digital body fat - body water content measurement, muscle mass and bone mass analysis stores the data of 4 people measurement units: kg, lb automatic switch-off touch control overload display non-slip feet size: 32×26×5 cm weight: 1.4 kg 2 year warranty