Authentic Adidas Micoach PacerB activity tracker, heart rate monitor and stride sensor. In the original box. 

Please be advised that a CR2032 battery is required for the Stride Sensor and is not included. 

The mounting type is a clip for sports apparel. The audio Interface is a 1/8" stereo headphone jack (TRS connector).

The power supply is a Rechargeable 125mAh lithium polymer battery. Charge/Snyc cord 1/8" to USB (included)