high quality.[Most Exercise Spin Bikes use this monit] - f Stationary Bikes with "head phone " look connection tips. E.g. by f bikes Sunny, , L-Now, , , Pleny, , , Faafuu - 90% of Amazon as as domestic Both speedometer and pulse trakcing connection are through 3.5 mm female jacks on the back the monit - adapters (NOT INCLUDED) might be needed if the device also happen to have FEMALE jacks (rare cases)[Optional Heart Rate Moniting Feature]An optional feature that wks with bikes with pulse senss (usually 2 x metal pieces on hle ). Re-wiring MIGHT be required f some perticular models.2 x AAA Batteries IncludedColour: Blackmaterial: plasticPackage Contents:1 x Exercise Bike ComputerOnly the above package content, other products are not included.Note: Light reflection different displays may cause the col of the item in the a little different from the real thing. The measurement allowed err is 1-3cm.