January 9, 2018The Telephone Interface RH2818I can automatically answer an incoming phone call and broadcast the caller's voice over the PA system and even to individual zones,and a microphone input is provided for ...view
January 9, 2018The RH2805M is a kind of timing player of the MP3 program timing platform and integrating the playing of program and the timing control of the playing of the program from U disk.view
September 11, 2018Descriptions of 200W 300W High-Power Outdoor Horn Speakers The RH-AUDIO High-Power Outdoor Horn Speaker provides high sound pressure, high directivity and sturdiness as made with synthetic resins,and ...view
January 9, 2018The Alarm Interface RH2815E is used in a public address system to produce an alarm sound either by a short-circuit signal to trigger auto-alarm or by a manual pushbutton,it can output a built-in siren...view
January 9, 2018The wall mounted speaker RH-MS12 is designed with full ABS compact enclosure,generally produces better sound without taking up the valuable floor space, can be placed anywhere for commercial applicati...view
September 11, 2018Descriptions of UHF 4-Channel Wireless Microphone RH860UUsing UHF640-840MHz band to avert interferencing frequency. All using quartz crystal oscillating circuits so the frequency is very steady. Speci...view
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