Zoom ARQ Aero Rhythm Trak Drum Machine, Synthesiser/Sequencer/Sample looperZOOM ARQ... really very little use. In very good condition and fully functional... latest fimware installed.Comes complete with power supply.I have also included one 16GB SD card + the ZOOM ARQ manual that i downloaded and printed out.Base Station and Ring ControllerThe Base StationThe ARQ Base Station houses 468 drum/instrument sounds ("one-shot" sampled waveform sounds)
70 types of synthesizer sounds, and dozens of digital effects. Dual 1/4" line-level audio inputs enable phrase recording and looping.
There are also stereo 1/4" line-level outputs as well as a dedicated 1/4" headphone jack with its own volume control.A USB port allows connection to your computer, and an SD card slot lets you save patterns and loops, import prerecorded audio, and update firmware.
  The Ring ControllerThe detachable Ring Controller communicates with the Base Station, as well as DAWs, via wireless Bluetooth.
It offers 96 velocity- and pressure-sensitive pads for clip launching and playing drum sounds, instrument sounds, and sequences.
Phrases and sounds can be played chromatically, or you can choose from dozens of preset scales in any key.
Its unique Grip Detection automatically prevents accidental triggering of the pads under your hand.
There are dedicated buttons at the top and bottom of the Ring for REC/PLAY/STOP, as well as Filter/Delay/Reverb/MASTER FX on/off.     An onboard 3-axis accelerometer generates MIDI control messages to alter sounds and effects in real time.
Its internal Lithium-Ion battery automatically charges when the Ring is placed on the Base Station.
 Specifications
Analog: PadsNumber of Pads: 96
Sensitivities: Velocity, Pressure
Sensitivity Curves: 4 Typse
Velocity (Send): Yes
Aftertouch (Send): Yes Number of LEDs: 160 LED Colour: Multi
Analog FunctionsAccelerometer: Yes
Number of Parameter Knobs: 4
Number of Control Keys: 28 (Base Station: 17, Ring Controller: 11)
Analog InputsType: 1/4" TRS
Number of Inputs: 2
Function: Line
Impedance: 50 k?
Gain: 0?-?dB
Dynamic Range: 92 dB Typ (IHP-A)
Analog OutputsType: 1/4" TRS
Number of Outputs: 2
Impedance: 100 ?
Dynamic Range: 106 dB Typ (IHF-A)
Analog: PhonesType: 1/4" Phone (20mW x2 [32 ?])
Impedance: 10 ?
Dynamic Range: 102 dB Typ (IHF-A)
Sound Engine: Sound SystemSound Engine: Internal
Sampling Frequency: 44.1 kHz
Bit Rate: 24-Bit
Maximum Polyphony: 16
Number of Instruments: 33
Number of Oscillator Types: 538 (PCM Sounds: 468, Synth Sounds: 70)
Number of Patterns: 400 (200 Preset)
Number of Filter Types: 8
Number of Insert FX Types: 11
Number of Delay Types: 1
Number of Reverb Types: 4
Number of Master FX Types: 14
Number of Modulation Types: 8
Number of Modulations: 2
Number of Envelope Generators: 2
Sound Engine: SequencerNumber of Steps: 32
Motion Sequences: 256 Motions
Song Mode: Yes
Tempo: 40.0?250.0 bpm
Sound Engine: Sampler/CaptureSampling Frequency: 44.1kHz
Bit Rate: 16-Bit
MediaType: SD, SDHC, SDXC
Internal Memory: 32MB
Power SourceInternal Battery: Li-ion Polymer (DC 4.2V Max Voltage, DC 3.7V Nominal Voltage, 450mAh Capacity)
Internal Battery Life: 5 Hours
Recharging Time: 2.5 Hours
External Power SourceBase Station: AC Adapter (AD-14)
Input Voltage: 5V 1A
Electricity Consumption: 1.25W Max (No Charging), 4.5W Max (Charging)
Ring Controller: Internal Battery
Electricity Consumption: 2W Max
ConnectivityBluetooth LE: Mac (10.10.4 or Later), iOS (8.0 or Later)
USB MIDI: Windows 7 (SP1 or Later), Windows 8 (Including 8.1), Windows 10, Mac (10.8 or Later)Physical Measurements: Base Station...Dimensions (W x H x D): 280mm x 50mm x 280mm
Weight: 1.2 kg (2.65 lbs)
Display: 2.0 inch (320 x 240) full color TFTPhysical Measurements: Ring Controller...Dimensions (W x H x D): 280mm x 33mm x 280mm
Weight: 520 g (1.15 lbs)