From gbhackers.com
LED wristbands to light up large shows and events, it will be provided by event organizers to attendees, the wristbands are a part of lighting systems and it can be remotely controlled by DJ.
RF remote controllers are the common techniques used in these LED wristbands, security researchers from Trend Micro shows that these wristbands can be hacked and they able to reconstruct the packet structure.