Power source: CR2032 battery
Dimensions: 8.5 * 4.8 * 1.5cm
Package size: 15.5 * 14.5 * 3cm
Package weight: 150g
Package Contents : 1 * LCD bicycle computer , 1 * Transmitter sensor , 1 * Mounting shoe , 1 * Magnet , 1 * Bracket , 4 * Cable ties , 1 * User Manual