This OP-1 is cool but it has an issue with the charging port. It is a bit damaged and finiky. 
For parts this thing is great... also it does turn on, and can be charged... but that port is damaged.

OP-1 is the all-in-one portable synthesizer, sampler and controller. with additional features like a built-in FM radio and an assignable G-force sensor for motion controlled effects, there is nothing quite like it.

the all-in-onewonder

OP-1 is the all-in-one portable synthesizer, sampler and controller. with additional features like a built-in FM radio and an assignable G-force sensor for motion controlled effects, there is quite nothing like it.

its modular architecture enables endless sound possibilities without making the workflow complicated or distracting. 

the compact design and real physical interface makes it inspiring to create music, no matter who you are or how experienced you are.

synthesizer and controller

with thirteen synthesizer engines, seven high quality effects and multiple routable LFO’s, you'll never hit the wall when it comes to creativity or finding the right sound for the job. add the unique built-in sequencers on top of that and you'll understand why so many highly regarded producers and artists hold this little machine so dear.

in controller mode, OP-1 turns in to a full blown MIDI controller, with access to transport (play/stop, rec, rewind and forward), a two octave keyboard with four endless encoders as well as a sound module that can be controlled from virtually any external software.

4-tracktape feature

record anything you create with the 4-track tape feature. match the tape speed to the sequencer tempo for some really nice overdubbing. change tapespeed while recording, or record backwards in realtime. switch to the 4 channel mixer and add some punch with the built in EQ and compressor.

finally, create a live mix in album mode on a virtual vinyl.

works withyour other stuff

use OP-1 to synchronize your pocket operators or connect it to any other gear using MIDI over USB. when you connect OP-1 to a computer using the included USB 2.0 cable, the OP-1 shows up as a MIDI controller or a storage device. if storage device is selected, just drag and drop audio files between your computer and the OP-1. all 4 tape tracks are available as well as the drum and synthesizer samples. everything ready for you to tweak or add to your DAW. no additional software or drivers required. just plug and play.

super amoled display.

the vector based graphical user interface is displayed on the brilliant super amoled display running at 60 fps. all graphics run in realtime, so when a modulator is assigned to a synthesizer parameter, you'll see how that specific parameter is animated, telling you exactly what's going on.

16 hours battery life.

you can travel the atlantic ocean and back again, constantly making music on your OP-1 before it runs out of power. with over 2 years of stand by time, you can pick it up and create whenever you feel for it.charging is easy with the provided cable plugged into any computer or phone charger that has a USB connector.

technical specifications

os

• dr wave – raw 8-bit
• fm – easy to tweak fm synthesis
• pulse – square wave type
• string – physical modeling
• digital – raw digital type
• phase – phase distortion
• cluster – multiple wave cluster
• dna – unique id synthesis
• dsynth – dual oscillator
• dbox – drum synthesis
• voltage – electric synthesis 
• future additions of engines will be available with software upgrades

• dedicated instant synth sampler with 6 seconds sampling time for each slot.
• dedicated instant drum sampler with 12 seconds sampling time for each slot.
• automated layout feature in drum sampler.
• instant sampling using the built-in microphone or line in.

• classic adsr type envelope
• dynamic envelope for drum sounds.
• tempo synchronization.
• future additions of envelopes will be available with software upgrades

• delay – classic delay type
• phone – hacked phone effect
• punch – adds punch to your sound
• grid – grid based echo
• spring – spring reverb type
• cwo – rhythmic delay
• nitro – d