Portable multitrack audio recorder and USB audio interface. Features: The MixPre allows you to record, playback, mix, monitor, layer, and overdub up to 12 tracks (6 simultaneously). The MixPre-3M features a built-in metronome to help keep your performance in time, while premium-quality, silky-smooth reverb and vocal air effects add depth to your recordings, and can also inspire a great performance. Features four, high-performance, ultra-low-noise Sound Devices' Kashmir microphone preamps. Specs: 8-in/4-out audio interface (USB-C). Recordes onto SD, SDXC and SDHC card. Recordings with up to max. 24-bit/96 kHz. 4x XLR microphone inputs. Stereo AUX/mic input with 3.5 mm jack. 48 V Phantom power. 3.5 mm Stereo output. Headphone output. Including MX-4AA Battery Sled (batteries not included) and MX-PSU AC Adapter.