This plug-and-play wireless audio receiver replaces the cable between an instrument and a guitar amplifier. It operates in the license-free 5.8 GHz band and provides 24-bit/48 kHz audio with latency below 6 ms. Four switchable transmission channels are available, and up to four transmitters can operate in parallel. The receiver has an adjustable 195° angle, a 6.3 mm unbalanced output, a range of up to 15 m indoors and 30 m outdoors, and a rechargeable lithium-ion battery with up to 4 hours of operation.