These Transmitters will only be compatible with GTD-Audio G-622 Series Receiver. Frequency: 610Mhz -670Mhz, 100 Selectable Frequecies. The item “GTD Audio Transmitter with Lapel Mic 100 Channels For G-622 system” is in sale since Friday, February 8, 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.

• Brand: GTD Audio
• Model: U622L
• MPN: 184777