This small controller is portable and highly functional
I have had several M-Audio products over the years and they've all been reliable and long-lasting. I primarily picked up the 25-key Oxygen 8 to controller synths via the 5-in MIDI interface rather than via USB on a PC. This controller is very intuitive and the on-line manual is very specific.
It does what I need it to do and undoubtedly much more because all I require from it is to trigger a midi module to use it as a dedicated bass and it does that perfectly. If you're looking for a highly portable, well-constructed midi controller, this is terrific for those functions and I would highly recommend it.
It's used, half the note don't have smooth action, missing power supply!!
It's used so it is what it is and it didn't have the power supply which is a reversed type connector so will have to use batteries until I find the correct one..
The Midiman Oxygen 8 went out of style in the early 2000s. But the unit can operate as a standalone MIDI controller and has a compact design that is what I wanted. I use it as a source of MIDI signals.
This unit was received clean and in working order with only minor cosmetic scars. As a performance instrument it has been replaced. But for what I need it's perfect.