Model: NuTone ISB-53 / ISB-53L (they are the same just different names)
Condition: New in the box
Color: Eggshell White
Description: Indoor Speaker, Outside "Weatherized" Speaker
Package Includes: Surface mount frame, instructions, hardware and other accessories.
Compatible with: IMA-516 (Commu-ni-com)
Additional Notes: Rotary volume control can be turned off for privacy, talk-listen intercom switch, "on-off" door speaker switch, Monitor any station with "Talk Lock" button. Weather Resistant,