Video of RWM80U:

Includes:

• 2 wireless headset microphones
• 1 receiver unit
• 2 1/4” Guitar cables
• User manual
• Batteries
• Power adapter

Features:

• Rockville RWM80U Dual Wireless UHF Headset Microphone System
• High performance wireless headset microphone system
• Includes transmitter with two high sensitivity, unidirectional, wireless, cardioid headset 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
• Use any two mics (handheld or headset) at once
• Individual microphone volume controls
• Rugged metal housing
• Comfortable ergonomic composite microphone construction
• Low power consumption for longer battery life

System:

• Operating Range: 300´ – 400´(indoor), 250´ – 350´(outdoor)
• Channel: Two Channel
• Frequency Range: 500MHz - 698MHz
• Frequency Stability: ±0.005%
• Modulation Mode: UHF
• Frequency Response: 50Hz - 15KHz (±3 dB)
• Dynamic Range: 105dB
• S/N: 100dB
• T.H.D: < 0.5% (1KHz)
• Audio Output Jack: XLR balanced & 1/4 mixed
• Power Supply: 110V
• Operating Temperature: 3°F - 130°F
• Mic Battery Operating Time: up to 10 hours
• Oscillation mode: Quartz Crystal
• RF Output Power: 10mWOutput Level: 0 – 300mV

Owner's Manual

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About Rockville Quality Control Procedures: 
The Rockville brand stands for Quality, Innovation and Value. We aim to deliver products twice as good as our competitors at a fraction of the cost of famous brands. All Rockville products go through the most rigorous quality control standards in the industry. Products go through months of extensive testing before they reach your hands. All functions and components are tested for quality. Rockville makes products that are virtually un-breakable! Rockville is one of the only brands in its class to have engineers and technicians test every concept model for weeks or months before starting production. Once production begins, Rockville sends product engineers to the factory to quality control every product. After production is complete Rockville has the head of QC in our overseas office test a certain percentage of all products from the production line a second time to ensure that the quality meets our strict standards. All Rockville products are backed with a hassle free warranty.