100% Brand New.Wireless Bicycle speedometer with LCD display.Monitor your bikes' speed， distance and riding time.Wireless design is more convenient and good looking.Ideal assitant for bicycle training .Perfect to use when hiking， climbing， riding and other outdoor actives.Make your sports life more free and comfortable.Lightweight， durableNote: Just the accessory， the bike not included.SpecificationSPD: Current SpeedODO: Odometer.DST: Trip DistanceMXS: Maxium Speed.AVS: Average Speed.TM: Elapsed Time.CLK: Clock (12H/ 24H).SCAN. "+""-" Comparator.Setting Speed Scale: km/h， m/h.Setting Tyre Circumference:(0 mm - 9999 mm).Seeing the Last Value of Odometer.Freeze Frame Memory.Wireless Transmission.Auto: ON/ OFF.Package Content:1 x Bicycle Wireless Computer Odometer Speedometer.1 x Sensor.1 x Mounting Shoe.1 x CR203 Button Battery for Bike Computer.1 x 12V/23A Battery for the sensor4 x Cable Ties.1 x Wheel Magnet.1 x Manual User