Keeley EQ Effects Pedal (KCPro) Compression LED Display - 7 Segment LED display for fast and accurate metering of compression and gain reduction. Gain Reduction Levels of -1dB to -20 dB are indicated. Threshold LED Indicator - Bi-Color LED to indicate when compression is initiated and released. True-Bypass - No tone or signal loss when OFF Hard/Soft Knee Compression Auto Mode - Program dependent Attack and Release times. Set to Auto ON for worry-free performance and automatic Attack and Release times.