DINOKA Bike Speedometer Waterproof Wireless Bicycle Bike Computer and Cycling Odometer with Multi Function LCD Backlight Display bee05 LIGHTWEIGHT & STRONG A beauty_2021 LIGHTWEIGHT & STRONG A balance between weight savings and strength Single exit Simple Steps Setup: 1 Install Batteries(Both Sensor and Bike comouter requires batteries) 2 Reset and Pair the computer before first use in order to achieve the most accurate results 3 Install the Seat 4 Mount the Sensor on the front wheel 5 Mount the magnets on the front wheel's spoke 6 Set the computer into the Seat : Package Weight:100g Dimensions:56mm41mm20mm Screen: LCD display Functions: 1 TM: elapsed time 7