A digital wireless system operating in the 2.4 GHz frequency band. The system analyzes the RF spectrum, determines the best available frequencies, and automatically deploys frequencies to the transmitter and receiver. Additionally, in the presence of RF interference, the receiver and transmitter will seamlessly move together to clean frequencies with no audio signal interruption. GLX-D is available with traditional bodypack and handheld configurations, as well as a new pedal-mounted guitar option offering an integrated tuner. Transmitters are powered by a custom intelligent lithium-ion battery for up to 16 hours of continuous use at full charge. The battery is good for up to 10,000 hours of use, and can be quickly charged in 15 minutes for up to 1.5 hours of use, through a wide variety of power options, including USB connections.