This cycling computer, easy to install and operate, measuring speed, distance and riding time, is a perfect tool for your riding training.Features:2.7-inch large screen display system with touch button design for convenient use.Main bike modes: SPD, AVS, MAX, DST, ODO, CAL, PRM, RT, TT, RAT, etc.Small size and lightweight, as a bicycle speedometer and odometer, measuring speed, distance and riding time.Allow two sets of wheel diameters and other data for bicycle A and bicycle B.Speeding alert for your riding safety, low-voltage and maintenance reminder function designed for long-distance cycling.Wide range of application including bicycles, electric vehicles, even motorcycles.Suitable for vehicles of 5.2" to 52.5"(wheel diameter: 10~99.99cm).Riding in a rainy day is ok, but not soak in water or put in rainstorm for a long time.Specification:Material: ABSVersion: Wireless / Wired (90cm)Power source: 2 * CR2032 batteries Item size: 4.8 * 7cm / 1.9 * 2.8inItem weight: 40g / 1.42ozPackage List:1 * Cycle Computer1 * Bracket (with or without wire)1 * Induced Magnet1 * Cadence Sensor1 * Rubber Slice5 * Cable Ties1 * User's Manual null null null null null null null null null null null null null null