The transmitter can be used with either an instrument or with included lavalier microphone - but not both at the same time.
You have worked hard to get your guitar tone, now retain that great tone but go wireless. The system's new cable emulator feature allows you adjust virtual cable lengths to get sound response just like a cable. Another great new feature for guitarists is the built-in guitar tuner, right on the display. A built in 5 band EQ allows you to fine tune your sound even further. Bass players in particular will be pleased with the enhanced AF frequency response: it starts at a thundering 25 Hz, which will especially please players with 5 string bass guitars. - Plug in and play!
Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCC's wireless microphone website at www.fcc.gov/cgb/wirelessmicrophones.