Features of Zoom B3 99 effects, including distortion, compression, modulation, delay, and reverb 12 amp / cabinet models 3 backlit LCDs with contrast control Intuitive user interface Ultra-fast (1ms) patch change speed Up to 3 effects can be used simultaneously, chained together in any order 100 memory locations for the storage of user-created patches 50 factory preset patches, including personally designed effects by Victor Wooten (Béla Fleck & the Flecktones), David Ellefson (Megadeth), Frank Bello (Anthrax), and Doug Wimbish (Living Colour) Store and Swap functions make patch organization a breeze Auto Save function for automatic saving of all patch parameters Onboard chromatic tuner supports all standard bass tunings, including open and drop tunings Looper feature for the recording of up to 40 seconds of CD-quality phrase recording 41 built-in rhythm patterns which can be used in conjunction with the Looper Easily integrated into any existing pedalboard Input jack accepts standard mono guitar cable Active/Passive switch Dual output jacks for connection to amps or headphones Balanced XLR output jack with ground lift for DI connection (pre- or post-effect) to line-level devices, mixing boards, and recorders Control input for external foot switch or expression pedal Runs on 4 AA batteries, with alkaline battery life of more than 6 hours Included AC adapter with usb cord. USB port for bus power and firmware updates 2-in/2-out USB audio interface for PC/Mac computers Compatible with Zoom Edit&Share software Features of Zoom MS- 60B 58 bass effects and amp/preamp/DI models, including modulation, equalization, delay, and reverb Up to 4 effects can be used simultaneously, in any order 50 memory locations for the storage of user-created patches 30 preset patches Patch cycling Onboard chromatic tuner supports all standard bass tunings Tap Tempo for synchronization of delay times or modulation rates Auto Save function for automatic saving of all patch parameters ¼" input jack (both active and passive instruments supported) Dual ¼" output jacks Backlit LCD with contrast control for easy viewing in low-light environments USB port for power and firmware updates Lightweight and small enough to fit in your gig bag Easily integrated into any existing pedalboard Runs on 2 AA batteries, with alkaline battery life of up to 7 hours Optional AC adapter This is a great deal on on the Zoom B3 & MS-60B Multi-Effects Guitar Effect Pedals. I just found that I have no use for them anymore so I'm selling them together which is a great value. Both petals have a few marks but not major that degrades the integrity and quality of them. Comes with everything that's in the pictures. Blank warranty papers are included. Paypal Only Please. Free Shipping on Both or Separate pedals.