Brand N/A Model YS-618 Quantity 1 Color Black Material Plastic Functions Wired backlit stopwatch Screen Size 3 x 3cm Inch Power Supply 1 x CR2032 (included) Other Features Recording riding speed total distance single riding distance maximum riding speed average riding speed riding time; With 12/24 hour display; Auto power on / off: Aoto power off if the bike doesn't operate for 300 seconds; press any button to power on and record data; Voltage warning: when the battery is below 2.5V there will be flashy signal on the board; During 18:00~06:00 press any button to light up the backlight Packing List 1 x Stopwatch 1 x Magnet 7 x Ribbons 2 x Stickers 1 x Detector + holder stand (80cm) 1 x English & Chinese manual