With the EM 3031, EM 3032 and EM 3532 receivers, Sennheiser offers the professional user high quality RF receivers with high level of operational reliability and ease of use. The EM 3031, EM 3032 and EM 3532 receivers together with the suitable hand-held and pocket transmitters permit wireless sound transmission with studio quality. Due to further optimised PLL and microprocessor technology and the Sennheiser patented HiDynplus noise reduction system, these transmission systems surpass the signal-to-noise ratio and dynamic range of modern CD productions. The true diversity technology of EM 3031, EM 3032 and EM 3532 receivers ensures interference-free transmission and minimizes drop-outs during the RF transmission. Especially for small television studios and theaters, the simultaneous use of several EM 3031, EM 3032 and EM 3532 receivers is an economical alternative to technically more sophisticated and therefore more expensive multi-channel systems. 2.2 FEATURES • PLL microprocessor control, programmable • HiDynplus noise reduction system • High transmission reliability due to true diversity reception • Ease of use • "LOW BATT" indicator for transmitter battery status (only with certain transmitters • 19" 1 U housing • Supply voltage for external antenna boosters