TC-Helicon Voicetone H1 Intelligent Harmony Effects Pedal, UsedThe TC-Helicon VoiceTone H1 is a single-button stompbox vocal processor that adds 1 or 2 voices of realistic, guitar-controlled or manually set vocal harmony. 
Key Specifications & Features

• Processor Type: Vocal Harmony (1 channel)
• Form Factor: Stompbox pedal
• Analog Inputs: 1 x balanced XLR (microphone), 1 x 1/4" (instrument/guitar), and 1 x USB connector (for VoiceSupport application)
• Analog Outputs: 1 x balanced XLR (mono output), 1 x 1/4" (instrument Thru)
• Harmonic Voices: Up to 2 voices with 8 distinctive styles (above, below, or a combination of both)
• Key Selection: Manual key selector or automatic guitar-sensing tracking (plus guitar ground lift switch)
• Controls: 3-knob layout (Key selector, Voices arrangement selector, and Dry/Wet mix control), plus mic gain knob, footswitch, and Mic Control toggle
• Preamp Quality: Low-noise mic preamp with phantom power support
• Audio Performance: Dynamic Range >104 dB (20 Hz to 20 kHz); Frequency Response +0/-0.3 dB (20 Hz to 20 kHz)
• Power Supply: 12V / 0.4A DC power adapter (supplied)
• Power Consumption: 5.6W
• Dimensions: Height: 5.4" (140 mm), Width: 3.5" (90 mm), Depth: 2.3" (60 mm)
• Weight: 0.92 lbs (0.42 kg)
• Construction: Two-part die-cast metal with a rubberized base