Specifications: 1.Multi functions:Step counter function, Distance travelled(KM),Calorie calculation 2.Power supply:1 x 1.5V "AG-10/LR54" button cell 3.Available Color:Pink,Red, Orange,Black(ships in random colors) 4.Demension: LCD Screen:1.97 x 1.18 inch / 5x 3cm (L x W) Pedometer: 1.96 x 1.96 x 0.98inch /5 x 5 x 2.5 cm (L x W x H) 5.Material: ABS,Acrylic 6.Weight:28.3g/0.99oz Package includes: 1 x Multi function Pedometer 1 x instruction book Operation: The paces are detected via the movement of the waist for accurate reading, mount the unit closer to the center of the body