This is the older version of the Zoom MS-70CDR (not the CDR+). The firmware has been updated to v2.10. Although it's an older model, it's a cost-effective unit that can handle everything except distortion effects with just one unit. It runs on 2 AA batteries instead of a square battery. (AC adapter is not included, but it works with a 9v center-negative adapter with 500mA or more) **************** A stompbox for guitar/bass that can use 137 effects simultaneously. - Model Name: MS-70CDR - Number of Effects: 137 - Version: v2.10 - Application: For guitar/bass - Country of Manufacture: Japan Thank you for looking.