Quick Overview:This bicycle computer is good assistant when you are riding， it is not only show the current speed， odometer， trip distance， but also show the average speed， riding all time， maximum speed and so on. Features:25 main functionsBig LCD display: four-line displaysWater-resistance， can show data in the rainEasy installation， good durabilityPowered by CR2032 battery (not included)Functions:1.SPD CURRENT SPEED2.ODO ODOMETER / (0-9999KM)3.DST TRIP DISTANCE4.MAX MAXIMUN SPEED5.AVS AVERAGE SPEED6.OTM TOTOL TRIP TIME7.TM TRIP TIME8.RTM RIDING TRIP TIME9.CLK CLOCK / (12H/24H)10.SW STOP WATCH11.TEMPERTERATURE (-10degree to 50degree)12.TM UP TRIP TIME UP13..TM DN TRIP TIME DOWN14.TRIP UP TRIP DISTANCE UP15.TRIP DN TRIP DISTANCE DOWN16. + - COMPARATOR17.MAINTENANCE ALERT18.LOW-SPEED REMINDER19.OVER-SPEED REMINDER20.SEETING TYRE CIRCUMFERENCE21.SEETING THE LAST VALUE OF ODOMETER22.SETTING OTM23.FREEZE FRAME MEMORY24.AUTO ON/OFF25.BacklightSpecifications:Power source: CR2032 battery (Not included)Dimensions: 5.5 x 4 x 1.8cm/2.17" x 1.57" x 0.71"Weight: 30gPackage size: 11.5 x 7 x 4cm/4.53" x 2.76" x 1.57"Package weight: 75g Package Contents:1 * LCD bicycle computer1 * Transmitter sensor1 * Magnet4 * Cable ties1 * User Manual