Voluum™ is a volume-based multi-effect stomp box with a digitally controlled high-fidelity pure-analogue signal chain. Constant high-voltage (>30V) analogue power rails ensure high-headroom with low distortion and low noise for maximum signal clarity. A high-bandwidth fully-analogue signal path ensures there is no digital distortion to corrupt your signal, and allows high dynamic range signals to be processed flawlessly. Digital control gives you the ability to store presets and remotely-control the effects via MIDI. The effects chain comprises five effects (noise gate, compressor, LFO (tremolo), volume control and limiter) which can be used in any combination. The Voluum™ is also the world's first volume pedal to have a built-in precision chromatic tuner. As you'd expect from Sonuus, we've gone further to bring you a pedal that's innovative, sounds superb and packs more value than anything else on the market. Specification: Size: 171mm x 192mm x 76mmWeight: 1.3kg (without batteries)Power supply: 9V DC, 4x AA batteries, USB (500mA max)Battery Life Typically > 10 hours (NiMH rechargeables, 2000mA.hr)Input (Instrument): 6.35mm (1/4") mono jack | 2 MOhm impedance+18dBu nominal maximum input levelOutput (Instrument): 6.35mm (1/4") mono jack | 1 kOhm impedance+21dBu nominal maximum output levelSwitching: Transparent-True-Bypass | Buffered BypassBandwidth:17Hz - 121kHz (0dB gain)17Hz - 22kHz (40dB gain)17Hz - 35kHz (40dB attenuation)MIDI Input: Standard 5-pin MIDIMIDI Output: Standard 5-pin MIDIPin 1 & 3 allow external footswitch connectionsExternal Footswitches: 2 (up and down) via MIDI Output (requires an adapter)Presets: 30 factory | 100 userEffects: Noise gate, compressor, dual-LFO tremolo,volume pedal, volume fades, ADSR envelope, limiterControl methods: Pedal, envelope, MIDI controller, none (static)Computer: Standard Type B USB socketDrivers: Class-compliant (built into operation system)Computer (Audio/MIDI): Microsoft Windows XP, Windows Vista, Windows 7 and aboveApple OSX 10.3.9 and aboveComputer (Desktop Editor):Microsoft Windows XP, Windows Vista, Windows 7 and aboveApple OSX 10.5 and above