2×100 Channel UHF PLL Microphone System. GTD Audio G-622 wireless microphone system delivers superior sound quality and professional features. It is designed for a wide range professional application with 100 selectable channels, automatic frequency scanning, true diversity operation, Tone Lock squelch circuit, automatic transmitter setup. It’s the perfect for professional use at any events. Backlit LCD display showing RF level, AF level, Channel Frequency and mute status. 100 Selectable frequencies on each channel, multiple units can be used simultaneously. Built-In Tone Lock Squelch circuit protection from RF interference. Automatic frequency scanning to find and set the best available channel. Automatic transmitter setup, the channel of the transmitter and receiver can easily synchronize. Dual channel receiver, Both microphones can be used at the same time. Two XLR individual outputs and one 1/4 Mixed output. Individual volume control on each channel. Frequency: UHF 530MHz – 580MHz. (Comply with FCC new frequency rule). Battery Life: 12 Hours (AA batteries). Range: Up to 600 feet (200 meters). Rack mountable, Fits 19 rack. (1) Dual channel UHF diversity receiver. (2) Hand held microphones. (1) 1/4 audio cable. (1) AC-CD adapter 110V-240V universal. The item “GTD Audio 2×100 Adjustable Channel UHF Wireless Handheld Microphone Mic System” is in sale since Monday, July 15, 2013. This item is in the category “Musical Instruments & Gear\Pro Audio Equipment\Microphones & Wireless Systems”. The seller is “microphone-usa” and is located in Catonsville, Maryland. This item can be shipped worldwide.