16 channel remote - will control up to 16 individual shutters, groups of shutters and various combinations (per room, etc.)
4 channel remote - controls up to 4 groups of shutters and 1 "master" channel to control all shutters at once.
Uninterrupted power supply in the case of fire, power outages or other electrical failures.
1 channel black remote control to control 1 roller shutter.
Installs as a wall switch, operates wirelessly like a remote. It's the best of both worlds!