The SOUND on SOUND (or SOS) from Korg is a compact audio recorder that literally gives you unlimited tracks in the palm of your hand. The recorder captures CD-quality PCM WAV files at 16-bit/44.1kHz. The files are BWF compliant for professional use. Your recordings are stored on widely-available microSD or microSDHC flash memory cards for terrific stability and ease of sharing. The SOS can record up to 26.6 hours on a 16GB card, letting you capture anything you like. With up to 6 hours of continuous recording, up to 200 songs, and an unlimited amount of undo and redo functions, the sky is truly the limit.

The recorder has an integrated stereo microphone, so you can record right out of the box without having to add additional equipment. Standard 3.5mm mic and line inputs are provided, as well as a 1/4" guitar input, letting you connect your favorite microphones, instruments, or even a CD player or MP3 player. A built-in speaker lets you play back your recordings instantly, and the standard 3.5mm headphone jack lets you listen privately. The backlit touchscreen LCD screen displays vital info and provides an intuitive interface for easy operation.

An ideal companion for aspiring and professional musicians, the SOS features guitar, bass, and chromatic tuners, as well as loop recording and Sound Stretch, letting you adjust playback speed without affecting pitch. There are 100 built-in effects and 50 preset rhythms, letting you choose your backup band and change your sound right in the recorder itself. The wedge-shaped design fits perfectly in the hand or on a desktop for ultimate versatility. The SOS can run for up to 10 hours on a pair of AA batteries, and for longer periods by using the optional AC adapter. Free downloadable Korg Audio Utility software lets you edit recordings, perform file conversions, and create CDs on your computer.