Cool drum machine by Korg, tested and working fine, barely used by original owner, the original box is included, power supply not included. 

$AVE OVER BUYING NEW!! Actual pics shown!

Korg product info:
(Check the official Korg website for greater detail about this item)

Peerless beats generated by solid analog drum sounds and an Electribe-style sequencer

Even today, more than thirty years after the age dominated by analog synthesizers, we just can't let go of the sound of analog rhythm machines. Those thick sounds have the power to stand up to guitar and acoustic drums, and are still indispensable for track-making or live performance.
The volca beats gives you those analog drums plus the easy-to-use step sequencer of the Electribe; it lets you turn your inspiration into reality and generate beats with the best high quality sounds.

    Powerful analog drum sounds
    ?Real analog sounds created with reference to classic rhythm machines
    ?Maximum effect from minimal parameters - a unique advantage of analog
    ?PCM sound engine expands possibilities when used with analog sounds
    Loop sequencer distilled from the Electribe series
    ?The Electribe series step sequencer
    ?Stutter function generates repeated triggers that dramatically change the sequence
    ?Active Step function generates new bass lines by removing or inserting steps.
    ?Step Jump function instantly plays only the step you're pressing
    Convenient functions for incredible ease of use
    ?SYNC jack and MIDI IN connector allow synchronized performances with multiple units or with your DAW
    ?Compact size, battery-powered operation, and built-in speaker for enjoyment anywhere

Keyboard
?
    Multi touch trigger pad / step key

Synthesizer

Type?
    Analog synthesis (Kick, Snare, Hi Tom, Lo Tom, Closed Hi Hat/Open Hi Hat)
    PCM synthesis (Clap, Claves, Agogo, Crash)

Kick
    Click, Pitch, Decay, Part Level

Snare
    Snappy, Pitch, Decay, Part Level

Tom
    Hi Pitch, Lo Pitch, Decay, Part Level

Hi Hat
    Closed Decay, Open Decay, Grain, Part Level

PCM
    PCM Speed, Part Level

Sequencer

Number of part
    10

Number of Steps
    16

Number of Recording Patterns
    8

Connectors

Audio Output
    Headphones (3.5mm stereo mini jack)

Sync
    Sync In (3.5mm monaural mini jack, Maximum input level: 20V) , Sync Out (3.5mm monaural mini jack, Maximum Output level: 5V)

MIDI
    In

Power

Battery Life
    Approximately 10 hours (using alkaline batteries)

Power supply and batteries, not included:
    Takes AA alkaline battery ×6
    or AA nickel-metal hydride battery ×6
    AC adapter “KA-350” (optional, not included)

Dimensions
(W x D x H)
    193 × 115 ×45 mm / 7.61 x 4.54 x 1.78 inches

Weight
    372 g / 0.82lbs (Excluding batteries)