Blind button Q.1/Q.3 aluminum velvet, painted. Blind button for attaching to suitable inserts (electronic platform), low energy consumption, switchable to extension-guided orientation. With memory function for automatic execution of learned up and down times with position, party function, no execution of automatic/radio and extension commands (lockout protection). Flush-mounted installation, surface program. Material: plastic, thermoplastic, shatter-proof, halogen-free.