Walker's Digital HD Pro Elite Beige

a 50 DB of Powera Noise Reduction - NRR 9dbthat legacy of innovation continues with the introduction of the Walker's Game Ear Elite Series. Operating on entirely new platform that is 20 percent smaller than the original Game Ear, the Elite Series offers 4 channel/20 bit audio processing for unparalleled sound quality plus faster sound activated compression and automatic feedback control.a NRR- Noise Reduction rating of 29 DBa 50DB of powera AFT:?Adjustable Frequency Tuning, provides base/treble fine tuning capabilitya One environmental adaptive listing modea Toggle volume controla Four digital sound processing channelsa 20 bit audio processor for crisp clear sounda 8 band graphic equalizera Automatic Feedback controla Fast acting sound activated compressiona Low battery tone indicatora Power source #13 battery