Alesis Qmini, USB MIDI Keyboard Controller, 32 Mini keys with velocity sensitivity, 1 Assignable volume control, Octave +/- buttons, Wth pitch bend and modulation buttons, Sustain button, Edit button, Power supply via USB bus, System requirements: USB 2.0, Win 8 (64-bit), MacOS 10.13.6 or higher, Dimensions (W x D x H): 418 x 105 x 20mm, Weight: 0.5kg, Includes user manual, USB cable and software package as download (MPC Beats, Pro Tools First Alesis Edition, 4 Virtual Instruments, 5 MPC Expansion Packs)