TASCAM DR-07mkII Handheld Digital Recorder (Standard) Adjustable Stereo Condenser Microphones (XY or AB) Up to 96kHz/24-bit WAV (BWF) linear PCM recording Stereo MP3 recording from 32-320 kbps bit rate USB 2.0 port for transfer to PC and external power Powered by 2 AA batteries, AC adapter (optional: PS-P515U), or USB bus power