Zoom U-44 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 Compatible with Zoom interchangeable input capsules via 10 -pin connector Standalone AD/DA conversion High-quality recording and playback at resolutions up to 24 -bit/96 kHz