Zoom MRS-4 vintage compact all-in-one digital multitrack recording studio. Works great & fun to use! Comes with power supply, SanDisk SDSM 32mb memory card & Indmem USB SmartMedia multi-card reader. Can also be powered by 4 AA batteries. Ideal for home recording, producing demos, recording a rehearsal, or for anyone who wants to produce music without using a computer/ DAW like Pro Tools or Ableton. Also great as a portable recording studio. Has a lot of cool built-in features like a guitar tuner, adjustable metronome, time-based effects (multiple reverb settings, doubling, chorus), EQ, panning, etc. Features 4 channels for recording & mixing, including two 1/4" inputs, stereo 1/4" aux inputs, 1/4" headphone output, stereo RCA master outputs, & midi out. Records up to 2 channels at the same time, & can bounce multiple recorded tracks down to stems. If you want to mix in a DAW, can use the memory card with the card reader to transfer recorded audio files to a computer or Mac. Product Dimensions: 8 1/2" x 6 1/2" x 1 5/8". Product Weight: 1.5 lbs.