Electronic pedometer is mainly composed of vibration sensors and electronic counter.In walking the center of gravity will move up and down a little.Displacement is most obvious up or down to the waist.So remember step on his belt is most appropriate.So-called vibration sensor is actually a balance weight balance is destroyed when fluctuation vibration can make a contact appears on/off action,Recorded by electronic counter and display to complete the main function of the other heat consumption, distance conversion are completed by the circuit.1 meter range: 0-999992 A variety of color choices: white/red/black/yellow/green transparent, etc3 Contains a battery (AG4 x 1 PC)4 Accuracy: 50 within + / - 25 Low power consumption