1.Bone mass measurement. 2.Water measurement. 3.Fat measurement. 4.Muscle measurement. 5.Calorie measurement. 6.To be used in any age or body type. 7.Convenient to carry and easy to operate. 8.To record for up to 5 people simultaneously. 9.To use three x AAA batteries. 10.Dimensions: 21.5 x 20 x 4.8cm. 11.G.W.: 0.5kg.