Wireless computer with 30 functions: Current speed Average speed Maximum speed Riding time Trip distance Odometer bike 1 Odometer bike 2 Total odometer (1+2) Clock (12 / 24h) Low battery indicator Auto start / stop Speed pacer Backlight Total riding time bike 1 Total riding time bike 2 2nd wheel size Auto sleep Altitude Home altitude storage Altitude gain / loss Maximum altitude Minimum altitude Percent grade Total altitude gain (1+2) Temperature Heart rate Maximum heart rate Average heart rate Calories used Upper / lower limit