Marantz PMD660/U3B Hand-Held CompactFlash Recorder Records uncompressed 16-bit PCM .wav files at 44.1 kHz or 48 kHz; onboard editing Records mono .mp3 files at 64 kbps; Records stereo .mp3 files at 128 kbps Uses inexpensive Compact Flash media; 1 GB CF card can hold over 1 hour of uncompressed stereo Operates for four hours on four AA batteries; Two XLR mic connections with +48v phantom power Two built-in condenser mics; Built-in USB port for easy file transfer; Stereo line I/O