Zoom U-24 Channel Audio Interface Multi-channel and stereo USB audio interface for PC/Mac Connect to iPad with Apple iPad Camera Connection Kit or Lightning-to-USB Camera Adapter (sold separately), plus 2 AA batteries or optional AC adapter for power Two mic/line inputs with high-performance mic preamps High-quality recording and playback at resolutions upto24-bit/96 kHz Includes access to Pro Tools | First Includes Ableton Live 9 Lite software download code