Computer Functions: Speed, Average speed, Max. speed, Prognosis indicator,Daily distance (km or m), Total distance traveled by bike (1, 2 and Home Trainer), Clock, Auto stopwatch, Up to 9 lap times, Cadence (optional)Features: Wireless 2.4 GHz digital transmission (WIN), PC Connetcion through USB plug integrated to the computer housing, Software Wintech manager includedUsable with 3 different speed sensors - auto detection of active sensorCR 2430 battery - ReplecableQuick start guide and Wintech Manager included