X5S Digital Effects Processor With Feedback Suppression Anti-Interference Treatment Reverb Equalization Adjustment 1. Music parameter equalizer: 7-band 2. Echo low-pass filter: 5.99Hz–20.3kHz 3. Echo parameter equalizer: 3-band 4. Dual music input ports: 12 5. Adjustable reverb level range: 0–100% 6. Four microphone FBE modes: OFF, 1, 2, 3 7. Echo high-pass filter: 0Hz-1000Hz 8. Music input gain: 0dB3dB6dB (non-adjustable in user mode) 9. Direct sound level adjustment range: 0-100% 10. Remote control power: 2 AA batteries (not included) Features: 1. Superior feedback suppression circuitry prevents howling 2. Synthetic resin knobs with superior damping for smoother adjustments and extended lifespan 3. Full metal enclosure with stainless steel paint finish; top panel vents prevent overheating 4. Digital HD display for clearer signal frequency readouts and easier adjustments 5. Anti-slip pads prevent bottom scratches 6. Includes remote control for convenient distance adjustments