Wireless GPS speed and more in an easy to setup computer no speed sensor installation required. 50 percent larger screen than traditional cycling computers measures a full 1.8 for ease of viewing. Syncs seamlessly with BLE Speed, Cadence, HR and Power meters providing up to 46 functions Cadence included, HR and Power sold separately . Easily programmable through the Bryton phone app with up to 4 data displays per page. Strava auto sync and social sharing allows sharing of ride data as well as pictures from the ride. IOS incoming call and notification compatible. Includes cadence sensor does not include heart rater or power meters Head Unit, Mount, USB Cable and Cadence sensor Wireless GPS 46 White GPS/BLE 4.2