KORG Nano Kontrol Studio - fully functional in excellent-plus, fully-functional condition. USB and BT enabled.
$140 shipped CONUS.
From Amazon: You have the all controllers you need to operate your DAW: sliders that feature generous spacing and stroke, plus a convenient jog wheel. Whether you're controlling your DAW and plug-ins, or putting on a performance, the nanoKONTROL Studio provides everything you need in any situation. It's compatible with any software that supports MIDI input and can connect not only via USB but also wirelessly.
$140 shipped CONUS.
From Amazon: You have the all controllers you need to operate your DAW: sliders that feature generous spacing and stroke, plus a convenient jog wheel. Whether you're controlling your DAW and plug-ins, or putting on a performance, the nanoKONTROL Studio provides everything you need in any situation. It's compatible with any software that supports MIDI input and can connect not only via USB but also wirelessly.