The Sennheiser Evolution IEMG4-TWIN-B Twin Wireless In-Ear Monitoring System (B Band 626 - 668 MHz) get all the components you need for quality wireless transmission: a high-quality rackmountable transmitter with 1,680 tunable UHF frequencies, two bodypack receivers, and two pairs of IE 4 earphones. With the ew IEM G4-Twin, you'll enjoy increased bandwidth and power over previous generations, a transmission range up to 330 feet, and backward compatibility with previous evolution systems.

You can rely on this rackmount transmitter

The rugged SR IEM G4 is ready for the road with its proven transmission reliability and inspiring flexibility. It operates up to 61 channels with up to 42MHz of bandwidth and 1,680 selectable frequencies. Plus, it offers higher RF power of up to 50mW for crystal-clear reception. An upgraded infrared interface results in faster synchronization. The SR IEM G4 also features a user-friendly menu with a convenient jog wheel and an OLED display with automatic dimming, blue sync LED, red warning LED, and dedicated Escape button.

A compact receiver packed with the features you need The EK IEM G4 features adaptive diversity for super-reliable reception. Its headphone cable is utilized as a second antenna to banish audio dropouts. Operating the EK IEM G4 is also easy due to its intuitive menu navigation and highly-visible backlit graphics display. A switchable Hi Boost and a multi-level limiter complete the package.

Sennheiser's commitment to quality Sennheiser wireless products give you the reliability you need onstage, on the worship platform, in the meeting room, or for any other application that requires mobility plus clean, clear, intelligible sound. From handheld, mic-based transmitters to bodypack units, from versatile rackmountable receivers to premium-quality accessories, Sennheiser puts a commitment to quality in every wireless product they make.