Compatible with EASY 1, 2 & EASYTOP 2-channel transmitter (each channel with one up and one down button) Press and hold transmitter: operates when closing and in the immediate vicinity (no security). - with EASY 1: Works directly max. number of transmitters = 15 - with EASY 2: Add RECEIVER max. number of transmitters = 15 - with EASYTOP: Add RECEIVER max. number of transmitters = 1008
