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
January 9, 2018The RH-CH31 is an unidirectional sound projector speaker is made out of all metal extruded aluminum alloy enclosure with cast aluminium top and bottom plates are fully antirust, dustproof and weatherp...view
January 9, 2018The RH-AUDIO coaxial ceiling speaker RH-TH61 is designed with 8” PP cone woofer and 1” dome tweeter in coaxial way, provides premium performance in background, foreground and music-plus-paging sound...view