To connect to ICON, simply open up the ICON app on your phone and 'scan' for lights using the button on the top right corner. Your light/s should then appear below with the option to connect.
Please note that ICON will go to sleep after three minutes of inactivity and will then stop advertising the Bluetooth connection. In this case you will just need to give your ICON light a shake or move it, then re-scan and connect to the light.
Once your are connected you can then make use of the control features including customising the flash pattern, intensity and enabling the crash and theft modes.
As long as you stay in range (up to 100m) and your Bluetooth is switched on, you will keep the connection with your ICON.