If you require 64ft (20 Metres) or an even longer amount, you can purchase multiple sets of 16ft (5 Metres) or 32ft (10 metres) these LEDs & control the patterns/colors via the app.
The patterns will be connected as if it was one long set, controlled from one central app. Meaning you can purchase 32ft & a 16ft set or more & use the LEDs as one long set.