The wireless bicycle speedometer and odometer is an essential cycling accessory for both casual riders and serious cyclists. This multifunctional bike computer provides accurate speed and mileage recording, making it ideal for road bikes, mountain bikes, and even dirt bikes. Features -Color:Black -Material:ABS, PMMA -Size:8.00X5.45X2.00cm/3.14X2.14X0.79in -Wireless connection: enjoy the convenience of wireless installation and usage, eliminating the need for cumbersome wires and making setup a breeze -Large screen: the large, clear display allows that you can easily read your speed, distance, and time metrics, even while riding -Multifunctional design: this bike odometer offers multiple functions including speed, odometer, and time measurement, making it a versatile tool for cyclists -Weather resistant: built to withstand various weather conditions, this speedometer also allows great performance in rain or sun -Compact and lightweight: the small and lightweight speedometer means it won't take up much space on your bike, allowing for a convenient setup Package list: 1 x Bike Computer 1 x Extension Bracket 1 x Nut 1 x Base 1 x Transmitter 1 x Magnetic Screw 4 x Zip Ties 1 x Rubber Pad 2 x Manual