Used Spinning® BIO HR™ Wireless Computer Some Things Not included (See Description) OSFA:Silver the player can Remove the stay comfortable the player can Remove the padding and keep the compression shirt on for additional benefit of relief of tight or sore muscles pitchers experience superior control on the mound Countdown Timer: Can be set for distance or time Heart Rate Monitor: The cycling heart rate monitor features a strap coded specifically for each individual computer Wireless Cadence Sensor: For accurate tracking of revolutions per minute Batteries Included: For all components Automatic Start Stop: The monitor automatically starts when exercise begins and turns off 4 minutes after exercise stops Missing Items: 2 AAA Batteries Magnet Round handlebar mount 2 Zip Ties Not Included The easy to read