From Zoom:Packed with professional vocal effects, built-in looper, and our new Formant Pedal, no matter what style you sing the V6 will take your music to the next level. V6 offers over 10 studio-grade effects Simultaneously use up to three vocal processors from the Voice, Harmony and Effect sections Includes highly directional SGV-6 shotgun microphone to isolate your vocal to allow enhanced processing Formant Shift pedal for adjusting your vocal character in real time Looper for recording up to 3:30. 40 preset patches created by professional vocalists and audio engineers 100 memory locations for storing user-created patches Built-in compressor for optimizing input signal levels Built-in Enhancer for optimizing input signal frequencies via equalization and de-essing USB 2.0 audio interface capable of recording up to 16/24/32-bit, 44.1 kHz USB port for firmware updates, power and audio recording Line output for connecting to external mixing consoles Headphone output with dedicated volume control Runs for 3.5 hours on four AA batteries Included AC adapter Optional expression pedal offers advanced control over effects parameters Voice Section: 12 typesEffect Section: 10 TypesHARMONY section: 5 TypesNumber of patch memories: 100Sampling frequency: 44.1 kHzA/D conversion: 24-bit 128× oversamplingD/A conversion: 24-bit 128× oversamplingSignal processing: 32-bitFrequency response: 20 Hz–20 kHz (+1 dB/−3 dB) (200 kΩ load)Display: 2-digit 7-segment LEDSGV-6: Directionality: Super cardioid (3 directional mic units) Sensitivity: –46 dB/Pa at 1 kHz (each mic unit) Maximum sound pressure input: 140 dBSPL MIC IN: XLR jack Input gain: +3 – +40 dB Maximum input level: +4 dBu Input impedance: 3 kΩ or higher (1 kHz) Phantom power: +48 V OUTPUT: XLR jack Maximum output level: +8 dBu Output impedance: 50 Ω (HOT-GND, COLD-GND, 1 kHz) 100 Ω (HOT-COLD , 1 kHz) GROUND LIFT (switchable) PHONES: Stereo mini jack Maximum output level: 20 mW + 20 mW (into 32 Ω load) Equivalent input noise (when phantom power off): –125 dBu or less (A-weighted, 150 Ω input, +40 dBu input gain)Noise floor (residual noise): –75 dBuControl input: FP02 inputPower: AC adapter (9 V DC 500 mA, center negative) (ZOOM AD-16)4 AA batteries (about 3.5 hours continuous operation time when using alkaline batteries)USB: Connector: Micro USB Audio interface operation: 2-in/2-out USB2.0 Full Speed, 44.1 kHz, 16/24/32-bit External dimensions: 181 mm (D) × 320 mm (W) × 77 mm (H)Weight: 1.56 kg (excluding batteries)