Fostex AR101 USB Powered Audio Interface for iPhone 4/4S/5, DSLR Camera, and PC USB powered high quality audio interface for video production Dedicated iOS app offers Limiter, LCF, ATT, and custom settings 2 condenser mics, 2 mic/line inputs, stereo line output, USB out Independent L/R level meters, rotary encoder for level and pan control Includes aluminum hand grip; also mountable on tri-pod