Product description: INBIKE Rainproof Bike Computer Speedometer Wireless Odometer Cycling Bicycle Computer Bike Measurable Temperature Stopwatch 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, average speed, maximum speed, distance, etc. This item is ideal for riding lovers. Product features: 1. Made of premium material, lightweight, sturdy and durable. 2. Waterproof rubber ring to ensure safe use in rainy days. 3. Displaying time, average speed, maximum speed, distance, etc. 4. Easy installation on your bike and motorbikes. 5. Ideal for riding lovers. Specification: Material: Plastic Power: 1 * 3V Battery (Included) Size: Approx. 44* 6 *15mm / 1.73 * 0.24 * 0.59 inch Weight: Approx. 100 g Package Included: Wireless bike computer: 1 * Odometer1 * Wireless Base 1 * Wireless Base Sensor 1 * Magnet 2 * Adhesive Sticker 5 * Straps 1 * USB Cable 1 * User Manual Single Button Toggle/Easy operation Press button "M"to switch 4 different interfaces and multiple functions Wireless Version: Brand: INBIKE Color:Black Backlight: Green,White Specification:Screen size 2.1inch Size:about 4.4*0.6*1.5cm/1.73*0.24*0.59inch Battery: CR2302 button battery*1 Waterproof:Daily waterproof Installation position:HandlebarVehicle type:Bicycle,Mountain Bike,Tricycle Transmitting distance:the max 60cm/23.62inch Product information Many functions bring you a joyful cycling experience Length:6cm/2.36inch Width:4.4cm/1.73inch Configuration: Wireless Version: 1.bike computer 2.nylon belts*7 3.shake-absorbing sponge pad 4.rubber loop 5.wireless base 6.shake-absorbing sponge pad 7.button cell 8.strong magnet 9.wireless launcher 10.English version instruction Smart microcircuit, stable function -Save data even when it is power off suddenly -Powerful microcircuit; more stable function more correct data; longer service life Daily Waterproof Do not put the product into water or get wet in the rain for a long time. Cover a plastic warp when there is a bad weather. Cycling odometer, real-time update Let the data tells your passion and sweat Powerful function, easy operation Multiple functions,meet all your cycling needs 1;Speed 2;Riding Time(RTM) 3;Clock 4;Stopwatch 5;Total distance 6;Waterproof 7;Backlight 8;Average speed(AVS) 9;Riding distance 10;Distance(DIST) 11;Maximum speed(MXS) Long battery endurance, low consumption Only one 2032 button cell, low consumption and long endurance Open the battery cover with a coin Bike computer inspection method Method: Insert the computer to base. Then one hand holds launcher, one hand magnet. Approach the magnet to launcher and move it up and down. It is normal if there is speed display.(as the picture) The working principle of wireless version wireless distance 70 cm/27.55inchdistance between magnet and launcher should be 5 mm or so How to install the magnet and launcher Wireless bike computerWireless launcher needs a 2032 button cell. Fix the magnet with screws. Magnet can be aligned with the upper or lower of the launcher. Distance should be 5 mm or so. Wired bike computerFix the magnet with screws. The distance between magnet and launcher should be about 5 mm. Magnet can be aligned with the upper, middle or lower of the launcher. How to install computer How to install a wireless bicycle computer 1,Computer is fixed on the handlebar with belts 2,Magnet is fixed on the spoke. Launcher is fixed with belts.3,Insert the computer to base Installation instructions for bracket seat The wired version is different from the wireless version of the bracket seat, please note :) Product packaging: Step 1: Check the quality of the product Step 2: Pack the product with bubble paper Step 3: Packaging with express bags Step 4: affix the buyer"'"s address and affix "FRAGILE"to protect the package. (Note: Due to the long transportation time, if there is any problem with the product during transportation, please