COMMAX Wireless Interphone series provides HD VOICE communication quality with simplest installation method just by plugging in the power. Best use for hospitals, restaurants, offices, and any locations without wiring. | Wireless doorphone specifications: Power source AC110V| Paging tone: electronic chime | Mount type: desktop and/or surface mounted type | Working distance: up to 200 meters/ 6000 ft in open area; up to 50 meters/ 150 feet with barriers | Frequency: 1.7Ghz~1.9Ghz; Dimensions (mm): without handset: 107 x 195 x 38 mm / including handset: 107 x 195 x 51 mm| Doorbell specifications: Dimensions 91 x 134 x 22mm| No wiring connection to doorphone | Requires power connection of DC12V (sold separately)
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