Description:This item is made of quality material with fine process, it's lightweight, portable, durable, waterproof, resistant to high and low temperature. The screen is luminous and clearly display the time, speed, distance, etc. This item is perfect for riding lovers.Features:Made of premium material, lightweight, waterproof, sturdy and durable for long time use. Powered by one CR2032 battery, energy-saving deisgn can offer you a long working endurance.Large LCD dispaly can make you read readings clearly in day, convenient to use.It's multifunctional, it can show you data of speed, distance, time, current temperature, etc. The sensor is super sensitive and can work in wide range of harsh weathers and temperatures.Comes with necessary accessories, easy to install or disassemble, good accessory for riding lovers.Specification:Material: PVCColor: BlackBacklight: NoWaterproof: YesPower Supply: 1 x CR2032 battery (included)Odometer Size: Approx. 5.1 x 4.6 x 2cm / 2 x 1.8 x 0.79inchWeight: Approx. 84gMain Function:1.SPD CURRENT SPEED2.ODO ODOMETER3.DST TRIP DISTANCE4.MAX MAXIMUN SPEED5.AVS AVAAGE SPEED6.TM ELASPED TIME7.CLK CLOCK (12H/24H)8.SCAN9."+" & "-" COMPARATOR10.SEETING SPEED SCALE (KM/M)11.SEETING TYRE CIRCUMFERENCE (0mm-9999mm)12.SEETING THE LAST VALUE OF ODOMETER13.FREEZE FRAME MEMORY14.AUTO ON / OFF15.WIRELESS TRANSMISSIONPackage List:1 x Bike Computer (battery included)1 x Wireless Transmitter1 x Bike Computer Holder Mount1 x Magnetic Sensor4 x Straps1 x User ManualNote:1. This odometer is only rainproof! Don't dip it in water.2. Please don't miss the waterproof sealing ring in the battery compartment.3. Please keep the distance between magnetic senor and transmitter below 2mm..