Used M-Audio ProKeys Sono 88 MIDI Controller

This used M-Audio ProKeys Sono 88 MIDI Controller is a versatile digital stage piano and USB MIDI interface in one, designed for musicians seeking a reliable, all-in-one solution. Featuring 88 semi-weighted, velocity-sensitive keys, built-in GM sounds, and USB connectivity, it delivers rich piano tones and seamless integration with your DAW. It includes standard MIDI I/O, a 1/4" stereo headphone output, and several onboard instrument voices for on-the-go creativity. Despite being in fair condition with signs of cosmetic wear, it remains fully functional and ideal for studio use or live performance setups. Powered via USB or optional 9V adapter (not included), the ProKeys Sono 88 is an excellent choice for keyboardists needing a portable, affordable keyboard with both audio and MIDI capabilities.