Aiphone LE-D and LE-DA are door stations designed to work with Aiphone LEF Intercom System Models. Handsfree communication at door station, controlled by master station press-to-talk operation.Main FeaturesProvides communication and call-inABS plastic door stationWeather ResistantHands-free communication when master answersSpecsType of communication: Open voice hands-free communicationMounting: Mounts directly to the wall or 1-gang boxWire Type: 3-cond., overall shield - use Aiphone #822203(22AWG) or #821803(18AWG)Wire Distance: Door Station to farthest Master Station: 650'(22AWG) 1,600(18AWG)Protection Rating: IP43Temperature Rating: 14? ~ 140?F (-10?~60?C)Dimensions: 4-3/4" H x 3-7/16" W x 1-1/8" DGeneral InformationName: Aiphone LE-D LEF Series Surface Mount Door Station, Black, Aiphone Co., Ltd, AiphoneCategory: Aiphone, Communications, Intercoms & Telephone Entry, Intercom Door Stations, Labor Day SaleUPC Code: 4968249124832Country of Origin: Vietnam. Country of origin is subject to change.