smart LED string & app (phone)

At the BBox Jk you can borrow LED strings that connect to a powerbank through USB
The lights (5/10 meters, 50/100 LEDS) can be individually controlled through an app. (multiple strings simoutaneously)

android: https://play.google.com/store/apps/details?id=com.tech.idealled&hl=nl 
iphone: https://apps.apple.com/us/app/idealled/id1568029498