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POENVFPO Professional DI Box, Passive Direct Box with Amp Simulation, Metal Construction, 15k Ohm Input, XLR Output, for Electric Guitar Studio and Stage Performance

Professional Feedback Suppressor, Feedback Frequency Shifter, 5-Level Digital Anti-Howling and Automatic Scanning Feedback Frequency, Precise Suppression & No Damage to Sound Quality for KTV,Large

Anti-Howling Audio Processor, Microphone Anti-Howling Feedback Frequency Shifter Digital Audio Processor, Automatic Anti-Howling for Performance Stage KTV Conference Music Room

POENVFPO Drum Machine Guitar Effects Pedal, 121 Rhythms 66 Slots, BPM Control, LED Indicators, Stereo I | O, Blue, for Guitar Bass Studio (US Plug)

Professional Audio Processor, 882I Autotune Vocal Processor with Treble/Bass Frequency Adjustment, for House Karaoke, Performance

Anti-Howling Digital Audio Processor, Feedback Frequency Shifter, with 9 Level Inhibition Intensity, Ound Transmission Gain Improvement Amount: 5-14dB, for Recording Studios, Bars, Conference Rooms

Ejoyous BNC to Konverter 1080p 720p Video Adapter with 3D Compensation Scaler Up Technology for Monitoring Camera DVD Game Console