Main Features Height: 8.3 Width: 4.3 Depth: 3.1 Weight (Approximate): lb Limited Warranty: 1 Year Marketing Information Master handset to communication with maximum two IE series door station. Door call-in is announce with either a two or four stroke chime and an LED indicator. The IE-8MD features a handset for private communication, selective door release control, chime volume control and selective calling to sub handsets (IE-8HD). Maximum five IE-8HD can be connected in a system. Package Contents IE-8MD Intercom System 6 x Call Master Station Desk-mount Cradle Packet of Screws Installation and Operation Manual Information Name: SELECTVE CALL MAIN HDST Category: Masters UPC Code: 790143375324 General Information AJ- Brand Name Aiphone Manufacturer Aiphone Co., Ltd Manufacturer Part Number Product Model IE-8MD Product Type Intercom System UPC 790143375324 Weight lbs Miscellaneous Additional Information Easy 4 conductor wiring between handsets 2 Wires to door stations, same as doorbell Two doors with selective door release Room-to-room calling or all call External doorbell can be added Package Contents IE-8MD Intercom System 6 x Call Master Station Desk-mount Cradle Packet of Screws Installation and Operation Manual Physical Characteristics Depth 3.1 Height 8.3 Weight (Approximate) lb Width 4.3 Warranty Standard Warranty 1 Year