Manually time your laps or use the Pocket Pit hardware to automatically time and count your laps for you. Connect to the hardware using bluetooth to listen to your own lap times live through your in-built speakers or headphones. Record and save your lap times with date, time, and notes so you can build a database of setups for the tracks you race. Lap timing hardware purchased separately, please see the website www.pocketpit.net for further details.