Mackie Onyx Blackjack 2-Channel USB Audio Interface - 44.1/48kHz, 24bit, 2x Onyx mic preamps with 48V phantom power, Cirrus Logic AD/DA converters with 114dB dynamic range (A-weighted), true analog hardware monitoring of inputs, hi-Z Input, USB bus-powered, 2x XLR/jack inputs, headphone out, 2x monitor out (1/4" jack), includes Tracktion 3 Software (PC/Mac).