The Alesis iO Dock has the amazing ability to transform your Apple iPad into a full-blown recording system. Dual XLR/TRS inputs give you the option to record in stereo or mono. Both inputs have switchable phantom power. There is a guitar-mic/line switch on 2nd input for added flexibility. Also features MIDI and USB In and outputs; composite video output; headphone output with volume control; and is fully compatible with virtually all audio/video apps currently available. This compact portable powerhouse can go wherever you do. Operates on batteries or AC power. Serious Buyers Please. Don’t Ask if still available and don’t respond when I tell you yes. Don’t waist my time or yours. Thanks! The Alesis iO Dock transforms your Apple iPad into a full-blown recording system. Dual XLR/TRS inputs let you record in stereo or mono. Both inputs have switchable phantom power. There is a guitar-mic/line switch on 2nd input for added flexibility. Also features MIDI and USB In and outputs; composite video output; headphone output; Assignable 1/4" footswitch: and fully compatible with virtually all audio/video apps currently available. The Alesis iO Dock is compact, portable, and operates on batteries or AC power.