Product details:

The Sennheiser EW 100 G4-Ci1 is an easy-to-set-up rackmount wireless system that brings reliable high-quality, wireless sound to guitar and bass players performing in small to medium-sized venues including concert stages, houses-of-worship, theaters, and clubs. The EW 100 G4-Ci1 features a true diversity, half-rack receiver housed in a rugged, full-metal chassis. The receiver's auto-scan function searches a wide 46 MHz UHF tuning range with 1840 selectable frequencies available, seeking out a clean, interference-free channel for your audio transmission. The onboard guitar tuner is an added convenience for musicians. This system includes a Ci 1 cable that connects your instrument to the lightweight bodypack transmitter. The transmitter provides up to 8 hours of operation on two AA batteries, with a fixed 30mW RF power output and a transmission range up to 330'. Up to 12 wireless channels can operate simultaneously in the same space, with the receivers linked together for fast, multi-channel frequency setup. The EW 100 G4-Ci1 is backward-compatible with previous evolution systems. You can mix and match G4/G3/G2/G1 receivers or bodypack, handheld, and plug-on transmitters. It is also compatible with EW 300/500 systems.