Focusrite ITRACK SOLO LIGHTNING USB Audio Recording Interface+Headphones Focusrite ITRACK SOLO LIGHTNING USB Audio Recording Interface For iPad/Mac. 2 in / 2 out USB audio interface, 96kHz, 24-bit conversion. One Focusrite microphone preamplifier, Silver "soft-touch" aluminium unibody chassis. 1 microphone input - XLR, 1 Instrument input - ' unbalanced. 2 Gain knobs, 2 Gain halo signal indicators. 48V Phantom power switch, Direct monitor switch Large monitor level dial (controls headphone and line level outputs) USB Connection LED indicator. Headphone output - " TRS Jack, 2 unbalanced monitor outputs - RCA Phono. Device Link port (to connect iTrack Solo to iPad), Lightning Port. Kensington Lock slot, Mic. Frequency Response: 20Hz - 20kHz +/- 0.2dB, THD+N &lt; 0.002%: (minimum gain, -1dBFS input with 22Hz/22kHz bandpass filter). Equivalent Input Noise (EIN) &lt; -120dB: measured at minimum gain with, -1 dBFS (20Hz/22kHz band pass filter) Gain Range: +10dB to +55dB. Max Input Level: -3dBu, Instrument: Frequency Response: 20Hz - 20kHz +/- 0.2dB, THD+N 0.003%: (measured with -1dBFS input and 22Hz/22kHz bandpass filter) Noise: -87dBu (22Hz/22kHz bandpass filter). Gain Range: -10dB to +55dB, Max Input Level: -3dBu. Analogue Output Performance, Nominal Output Level: 0dBFS = +9dBu, unbalanced, Frequency Response: 20Hz - 20kHz +/- 0.2dB Noise: -87dBu (22Hz/22kHz bandpass filter). Gain Range: +10dB to +55dB, Max Input Level: -3dBu. Analogue Output Performance, Nominal Output Level: 0dBFS = 10dBu, balanced. Frequency Response: 20Hz - 20kHz +/- 0.2dB, THD+N &lt; 0.001%: (measured with 0dBFS input 22Hz/22kHz bandpass filter, un-weighted). Digital Performance, Clock sources: Internal clock only. A-D Dynamic Range: 105dB 'A-weighted' (all inputs). Converter chipset A-D dynamic range: 114dB Samson SR350 Over Ear Closed Back Studio Reference Monitoring Stereo Headphones. Lightweight design ideal for music recording, practice and listening. Powerful audio performance. Over-ear, closed back design with cushioned ear cups. 35mm drivers with rare earth magnets. Adjustable padded headband. 20Hz20kHz frequency range. 1/4" adapter included.