Line 6 Back Track Portable Digital Recorder

The Line 6 BackTrack is an easy-to-use portable digital recorder.
BackTrack boasts pro-grade features including a super-quiet 1/4-inch input, a 1/4-inch output for immediate playback, a "Mark" button to organize your best ideas on-the-fly, a "Play" button for instant replay, better-than-CD-quality audio, a rugged flash memory, lightning-fast USB 2.0 for importing audio to your DAW while the internal battery recharges.
It's always on, and always listening, so there's no need for a Record button.