iRig Keys 2 gives you more ways to connect & control all of your gear, in any situation. With improved compatibility for the latest mobile devices, full MIDI input and output, multiple power options, a stocked software bundle and a stylish new look, these new and improved controllers are ready to play when you are. Whether you want to practice silently or blast through a sound system, iRig Keys 2 has you covered.Features: Works with iPhone, iPad, Android, Mac/PC Lightning, USB-C and USB-A cables included Headphone out for use with the latest devices Compatible with all your favourite apps Stand-alone mode for use with outboard rigs 2.5mm MIDI IN/OUT with MIDI adaptor included SET button to save & recall custom setups Powered by your device or USB power Specifications: Keyboard: 25 mini-keys with velocity Connections: micro-USB, 2.5mm TRS Jack MIDI Input, 2.5mm TRS Jack MIDI Output, 1/8" Headphone Stereo Output Controls: Volume knob, Octave Up/Down buttons, Program Up/Down buttons, Setup button, 1 assignable data push encoder 4+4 assignable knobs Conversion: 16 or 24-bit D/A Sampling Rate: 44.1 kHz, 48 kHz, 88.2 kHz and 96 kHz Power: USB bus-powered when used with computer or mobile device, USB power supply or USB battery packs Includes: Lightning to micro-USB connection cable (60cm/23.6"), USB-A to micro-USB connection cable (60cm/23.6"), USB-C to micro-USB connection cable (60cm/23.6"), 2.5mm TRS male to MIDI female adapter (10cm / 3.9") Dimensions: 324mm/12.76" x 139mm/5.5" x 54mm/2.13" Weight: 0.58kg / 20.5oz