The CD-200-SET is a 2 wires telephone intercom system, that includes keypad panel and AR-200 adapter, which adapt between the CD-200 keypad panel to the main telephone line coming to the house allowing the homeowner to open the gate and speak with the visitor through any telephone in the house including wireless. *CD-500 / AV model is avilable to order, connet directly to 5-wires intercom handset Features: - Can store up to 96 access codes. - Lighted or non lighted keypad available - Out / in door installation - Simple to operate and program - Smart looking durable design - Designed for mounting on a wall, or over a Single-gang junction box - Silver or anodized bronze color