[Material and Size]: This fitness equipment display instrument is made of plastic material, with a product size of 22x15cm, making it compact and easy to install on various fitness equipment. [LCD Display]: It features a large LCD display screen of size 57.5x130mm, providing clear visibility of your workout data even during strong exercise. [Advanced Hardware]: The device comprises a control board, signal processing (amplification, filtering), and a module for seamless connectivity and accurate tracking. [Multifunctional Use]: It monitors your exercise data and displays relevant data including time, distance, calories burned, WATTs, speed, Pace the LCD screen. [Application]Speedometer Odometer can be used on various fitness equipment such as stationary bikes, treadmills, bikes and fan bikes. Colour:Black Material:plastic Specification:with Heart Rate Package Contents: 1 x Exercise Bike Monitor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.