"Provides 2-way communication with Main Control (Item# 333170) and all other flush-mount or portable WireFree intercoms. Fits into wall without any wires to run. Operates up to 4 gate controllers. LED display shows progress of gate opening and closing. Requires 4 C batteries (not included). U.S.A. Unlimited number Of units per dwelling Digital connection for crystal clear sound 4 channels Up to 10 simultaneous conversations without interference Learn function for easy setup Portable and flush mount and outdoor/indoor units Page All feature 1000-ft. range Up to 3 years battery life with 4 C batteries (not included) Always ON, no need to turn off VOX monitor mode feature (some models) VOX sensitivity adjustments Compatible with reporter gate system (some models) 915 MHz, digital radio design U.S.A."
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