The Zen Studio+ mobile app is specifically designed to work with Antelope Audio's Zen Studio+ 12-Mic Pres Audio Interface. Download this app and turn your iOS device into a pro audio interface remote control. Zen Studio+ Remote allows both the engineer and the producer to operate the device's main features. Zen Studio+ Remote offers: β’ Preamps Gain Control β’ Monitor Volume Control β’ Headphones Volume Control β’ Device Selection (for Multiple Devices) β’ Stereo Link Selection, Phantom Power, Phase Inversion β’ Clock Source and Sample Rate Selection