On/Off - Start/Stop Button: Press to power device on, then press to start/stop an activity. To power the device off, hold button for 3s.

Lap: Select to mark a new lap, return to previous page within the menu

Up: Scrolls to previous menu item or page

Enter: Selects item in menu or activity page

Down: Scrolls to next menu item or page

Mount Locations (x2): Two rear mounting locations allow for use in portrait or landscape mode

USB Dust Cover: When installed properly, protects the Micro-USB Plug from the elements

Micro-USB port: For device charging and data transfer