This helps to eliminate "brown outs" and prevents your receiver from rebooting.
It will also help reduced the load on your ESC's BEC and reduce the likelihood of glitching.
Simply plug it in to any spare channel on your receiver.
Operating Voltage : 3.2V - 11.1V (1s ~ 3s LiPo)
Capacitor voltage: 16v
Storage Capacity: 3300uf