Feature: 1. [Multiple Functions] With multiple functions such as circular recording, average, maximum and current speed, odometer, clock, distance, scanning, maintenance reminder, this bike computer provides all the essential information you need for ride. 2. [Easy to Read] The LCD screen with backlit and large digits makes it easy to read the speed and other data while cycling at night, allowing you to focus on the road ahead. 3. [Wireless Technology] The wireless design allows for easy installation and avoids messy wires. Stable wireless transmission ensures accurate data for your bike, the distance between the computer and transmitter should not exceed 60cm. 4. [Waterproof Function] This bike computer features a waterproof design, so you do not have to worry about damage while riding in the rain. Enjoy every moment or travel for leisure. 5. [Widely Compatible] Suitable for all types of bikes, such as commonly used bikes, mountain bikes, folding bikes, road bikes, sports bikes, electric bikes, as well as motorcycles. Specification: Item Type: Bike Computer Material: ABS, PVC, Plastic Model: SD 548C Quantity: 1 Battery: 1 x CR2032 180mAh (Equipped) Sensor Battery: 1 x 23A 12V Battery 250mAh (Built in) SPD: Current Speed ODO: Odometer (0.001-99999km/m) Summer Time: Travel Distance MXS: Maximum Speed AVS: Average Speed TM: Elapsed Time Clock: 12H 24H Speed Range: km/h, m/h Tire Circumference: 0mm to 9999m. Package List: 1 x Bike Computer 1 x User Manual 4 x Cable Ties 1 x Magnet 1 x CR2032 Battery 1 x Computer Back Support1 x Sensor