Car Audio & Video. Rockville RWM90U Quad UHF Handheld Wireless Microphone System with Metal Casing. Condition: BRAND NEW IN ORIGINAL PACKAGING. Unboxing Video of RWM90U. 4 wireless handheld microphones. Rockville RWM90U UHF Quad Wireless Microphone. High performance wireless handheld microphone system. Includes transmitter with four high sensitivity, unidirectional, wireless, handheld cardioid microphones. Featuring a dual filter design to limit feedback and interference. Ultra signal stability eliminates unwanted distortion. Professional receiver with multifunction color displays shows frequency, signal synch, and audio input. Transmitter automatically links to receiver for ease of use. Individual microphone volume controls. Receiver has a rugged metal housing. Comfortable ergonomic composite microphone construction. Low power consumption for longer battery life. Includes rack mount bracket. Available in 4 Frequencies. Operating Range: 300´ 400´(indoor), 250´ 350´(outdoor). Frequency Range: 467MHz 490MHz. Frequency Stability: ±0.005%. Frequency Response: 50Hz 15KHz (±3 dB). Audio Output Jack: XLR balanced & 1/4 mixed. Power Voltage: AC110V/ 220V 50/60Hz. Operating Temperature: 3°F 130°F. Mic Battery Operating Time: up to 10 hours. Oscillation mode: Quartz Crystal. RF Output Power: 10mW. Output Level: 0 300mV. If your item is defective or you want to return it for any reason within the first 30 days of when it was delivered to you; you have the following options. We will send you a. To replace the item for a brand new one. All replacements and exchanges are free. This includes blown speakers with burned voice coils. Process for returning items. The item “Rockville RWM90U Quad UHF Handheld Wireless Microphone System withLCD+Metal Casing” is in sale since Monday, February 27, 2017. This item is in the category “Musical Instruments & Gear\Pro Audio Equipment\Microphones & Wireless Systems”. The seller is “audiosavings” and is located in Inwood, New York. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.