The Q3 allows you to customize your training experience with 5 programmable heart rate zones, up to 99 laps with real time lap functions, and both time and distance interval functions. There are programmable time and distance countdown functions, cadence tracking, and is waterproof up to 30m. The Q series functions on a 2.4GHz digitally encoded wireless band and will store up to 30 training files, downloadable with the USB Dongle (available separately). Along with your training data, it will record your total weekly, monthly, and yearly time and distance automatically. A handlebar mount and cadence sensor are included so you’ll be ready to go right out of the box.