September 11, 2018Descriptions of UHF 4-Channel Wireless Microphone RH840UUsing UHF640-840MHz band to avert interferencing frequency. All using quartz crystal oscillating circuits so the frequency is very steady. Speci...view
January 9, 2018The RH-AUDIO Pendant Speaker RH-SL01 is designed for use where traditional ceiling mounted speakers are difficult or impractical to install,providing coverage angles of 360 degrees horizontal an...view
January 9, 2018The 30ch Alarm Matrix RH2819A connects between a facility's fire alarm system and public address system,it has a multi-pin bus ready to be integrated with fire alarm system ...view