M-Audio Oxygen 25 3RD Gen USB MIDI Keyboard Controller - Tested! | eBay
Used M-Audio OXYGEN 25 Controllers 25-Key Controllers
Amazon.com: M-Audio Oxygen Pro 25 – 25 Key USB MIDI Keyboard Controller With Beat Pads, MIDI assignable Knobs & Buttons and Software Suite Included : Everything Else
M-Audio Oxygen 25 MIDI Controller Used At Music Manor, Lansing, MI