The BEST Call Rocker Switch/nCall Rocker Switch- Valcom call/rocker switch- Use with talkback control units with remote calling features- Fits a single-gang electrical box- White spring return rocker switch-Brushed stainless steel wall plate- Call button mounts in a single gang electrical box using twoscrews- Switches: single pole momentary springreturn rocker switch- Dimensions: 4.5"H x 2.75"W x 1.50"D- VALCOM POWER UNITS (0)VCV2972