For the professional vocalist, this handheld transmitter puts 10 superb microphone models right in your hand, including nine that are based on* the world?s most popular live sound mics from Shure, Sennheiser and others. With the touch of a button on the microphone, you can find the mic model that best fits your unique voice. Features include: ? Included as part of XD-V75 system ? 14 channels ? 10 superb mic models ? Line 6 RF1 and RF2 mode ? Worldwide, license-free operation in the 2.4GHz band ? Premium dynamic cardioid microphone capsule ? Encryption mode ? Can be used with XD-V75, XD-V70, XD-V55, XD-V35, XD-V30, Relay G90, Relay G50 and Relay G30 receivers