multifunctional 2-in-1 wireless LCD cycling computer, easy to install and operate, which is a good accessory for your riding. It has two main functions which can accumulate your riding distance, time, speed, and cadence, etc. It is really a useful cycling computer to meet your various needs. Features: MULTIFUNCTION: Wireless bicycle computer with LCD display. Auto wake-up / power off. 2 bike system. EL backlight. 2-in-1 CYCLING COMPUTER: bike and cadence mode. THE BIKE MODE: OSO: distance accumulated for bike 1 or bike 2; TOT: distance accumulated for bike 1 plus bike 2; DST: distance accumulated on each ride; Average / max. speed; Speed tendency & speed comparator; Clock, riding time, temperature, calories burned and fat burned; Scan function. THE CADENCE MODE: Current / average / maximum cadence; Scan function. Specifications: Material: ABS Power source: 2 * CR2032 battery Computer dimension: 6.6 * 4.7 * 2cm / 2.6 * 1.9 * 0.8in LCD screen size: 3.5 * 4cm / 1.4 * 1.6in Computer weight: 42g / 1.48oz Package size: 15.2 * 14 * 4cm / 5.98 * 5.51 * 1.57in Package weight: 138g / 4.88oz Package List: 1 * Bicycle Computer 1 * Sensor 1 * Bracket 1 * Magnetic Screw 6 * Cable Tie 1 * User's Manual(English)