Flex 4ES2
Four (4) single-speed pushbuttons

Flex 4EX2
Four (4) dual-speed pushbuttons

Flex 6ES2
Six (6) single-speed pushbuttons

Flex 6EX2
Six (6) dual-speed pushbuttons

Flex 8ES2
Eight (8) single-speed pushbuttons

Flex 8EX2
Eight (8) dual-speed pushbuttons

Flex 12ES2
Twelve (12) single-speed pushbuttons

Flex 12EX2
Twelve (12) dual-speed pushbuttons

MRX (Flex 4 & 6 models)
Up to 10 outputs

Compact Receiver (Flex 4 & 6 models)
Up to 10 outputs

Standard Receiver (Flex 8 & 12 models)
Up to 26 outputs