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 supports bright backlight, can make you read readings clearly in both day and night, 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. Spec:Material: PVC Color: Black Backlight: Yes Waterproof: Yes Power Supply: 1 x CR2032 battery (included) Odometer Size: Approx. 5.1 x 4.6 x 2cm / 2 x 1.8 x 0.79inch Weight: Approx. 84g Main 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 VAL