Product_description: ['Seco-Larm DP-T100-2Q ENFORCER Wireless Intercom Starter Kit, Range Up to 1000ft (300m), 4 Selectable Channels, Connect Up to 16 Wireless Intercoms, Each Intercom Has Adjustable Volume The ENFORCER Wireless Intercom is a simple and secure way to communicate between multiple intercoms (up to 16 units) within an area of up to 1,000ft (300m).* The wireless intercoms operate on 4 channels and can either broadcast to all intercoms or to select intercoms on the same channel. Key Features<ul> <li>Simple and easy setup</li> <li>Encrypted transmission offers security and protection</li> <li>Range up to 1,000ft (300m)</li> <li>4 Selectable channels</li> <li>Connect up to 16 wireless intercoms</li> <li>Each intercom has adjustable volume</li> <li>Indicator LEDs show mode and status</li> <li>Powered by batteries (alkaline or rechargeable) or power adapter (both not included)</li> <li>4 Communication modes: full broadcast to all stations, talk on a single channel, private talk, and hands free</li> <li>Fail-safe design: if an intercom loses connection it automatically reconnects to other intercoms</li></ul> Specifications<ul> <li>Number of Channels: 4</li> <li>Power: 12VDC/500mA adapter (2.1mm) or 1.5V AA alkaline/rechargeable batteries x 4 (both not included)</li> <li>Frequency: 902~928 MHz (frequency hopping)</li> <li>Low battery voltage: 4.2VDC</li> <li>Maximum RF Power: 57.2mW</li> <li>Range: 1,000\' (300m)</li> <li>Dimensions: 7-1/2"x3-1/2"x1-1/4" (190x89x32 mm)</li> <li>Weight: 5.3-oz (150g)</li></ul>']

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