UA-25EX USB Audio Interface Designed for low-noise and high-sensitivity professional recording with +4 dBu balanced input and output 2 premium XLR/TRS jacks with improved, professional-grade mic preamps and phantom power for crystal-clear audio capture Analog Dynamics Processing (threshold-adjustable Compressor/Limiter) with indicator for great sound on input Direct-Box functionality, essential for noise-free live stage use USB bus-powered, no AC adaptor required, ideal for mobile use