Product Features:Twin Pedal Multitrack Looper With True Stereo I/oTwo Synchronized Stereo Tracks With Dedicated Volume Faders And Track-select ButtonsMassive Internal Memory With Up To Three Hours Of Stereo Recording Time99 Onboard Memory Phrases For Storing LoopsBuilt-in Effects For Processing LoopsMultiple Inputs: 1/4in A And B Input Jacks, Stereo 1/8in Mini Aux Input Jack, Xlr Input Jack With Phantom PowerUsb 2.0 Port Allows You To Connect To A Pc And Import/export Wav AudioRhythm Guide With Real DrumsRuns On Batteries Or Optional Ac Power SupplyAlso Found As: Ve20, V-e20, Ve2-0Optional Accessories:Ac Adapter: Boss By Roland Psa-120sFootswitches: Boss By Roland Fs-5u, Boss By Roland Fs-6Pedal Board: Boss By Roland Bcb-60Authorized Internet Dealer5-year Manufacturer's Warrantywhat's In The Box?Owner's Manual (see Product Summary Below For Pdf)LeafletsAlkaline Battery (aa, Lr6) X 6 (included)specifications:Nominal Input Level: Mic In: -40 DbuInst In: -20 DbuAux In: -10 DbuInput Impedance: Mic In: 4 K OhmsInst In: 1 M OhmAux In: 22 K OhmsNominal Output Level: -20 DbuOutput Impedance: 1 K OhmRecommended Load Impedance: 10 K Ohms Or GreaterMaximum Recording Time: Approximately 3 HoursMaximum Phrase Memory: 99 PhrasesNumber Of Tracks: 2Data Format: Wav (44.1 Khz, 16-bit Linear, Stereo)Rhythm Type: Hi-hat, KickEffect Type:Bend DownStep PhaserSweep FilterTempo DelayLo-fiUsb Interface: Hi-speed Usb Mass Storage Device ClassControls: Rec/play/overdub Pedal SwitchStop/tap Tempo Pedal SwitchMic Input Level KnobMemory Down ButtonMemory Up ButtonMemory Write ButtonMemory Delete ButtonRhythm Output Level KnobRhythm On/off ButtonRhythm Type ButtonRhythm Tap Tempo ButtonTrack 1 SliderTrack 1 Select ButtonTrack 2 SliderTrack 2 Select ButtonLoop Fx On/offLoop Fx Type ButtonPhantom SwitchIndicators: Power IndicatorRec/play (dub) IndicatorsPeak IndicatorTrack 1 Status IndicatorTrack 2 Status IndicatorBend Down IndicatorStep Phaser IndicatorSweep Filter IndicatorTempo Delay IndicatorLo-fi IndicatorDisplay: 7 Segments, 2 Characters (led)Connectors: Mic In Xlr JackInstrument In Jacks (l/mono, R) 1/4in Phone TypeAux In Jack Stereo Miniature Phone TypeOutput Jacks (l/mono, R) 1/4in Phone TypeFoot Sw Jack 1/4in Trs Phone TypeUsb ConnectorDc 9v In JackPower Supply: Dc 9v Alkaline Aa X 6, Ac Adaptor (psa Series: Sold Separately)Current Draw: Maximum 195 MaExpected Battery Life Under Continuous Use: Alkaline Battery (aa, Lr6): Approx. 7.5 Hours Carbon-zinc Battery (aa, R6): Approx. 1.5 Hours Dimensions: 6-13/16inw X 6-1/4ind X 2-1/4inh