USB/Bluetooth LE MIDI Instrument Controller with 25 Low-profile Keys, 8 Velocity-sensitive Pads, 8 Knobs, and X-Y Touch Pad Flexible Instrument Control for Mobile Production The Korg nanoKEY Studio combines 25 low-profile keys, eight velocity-sensitive pads, eight knobs, and a KAOSS-style X-Y pad for selectable CC messages, delivering a studio keyboard worth of control in a gadget that's smaller than an A4-size notebook. If you're like the creative artists here at Sweetwater, when you're out producing music with your laptop or mobile device, the last thing you want to deal with is a bunch of extra cables. That's where the nanoKEY Studio's super-efficient Bluetooth LE connectivity comes in handy, allowing you to leave your USB cables behind without worrying about battery life. Top it off with a sweet software package, and the nanoKEY Studio is your ticket to mobile music creation. Korg nanoKEY Studio Wireless Compact MIDI Controller Features: A flexible MIDI instrument controller for mobile music production Play MIDI notes via 25 low-profile keys and 8 velocity-sensitive pads Manipulate continuous controllers via 8 knobs and a KAOSS-style X-Y pad Function keys for Chord Pad, Easy Scale, and speed up music creation Bluetooth LE lets you connect wirelessly to your computer or mobile device Includes software bundle for Mac, PC, and iOS platforms Tech Specs Number of Keys: 25 Type of Keys: Low-profile keypads Pads: 8 velocity-sensitive pads + 25 keypads Encoders/Pots: 8 MIDI I/O: USB USB: 1 x USB Type Micro-B Bluetooth: Yes, Bluetooth LE (Apple Low Energy compliant) OS Requirements - Mac: OS X 10.10 or later OS Requirements - PC: Windows 8.1 or later Power Supply: USB bus power or 2 x AAA batteries Height: 1.30" Width: 10.94" Depth: 6.30" Weight: 1.04 lbs. (without batteries)