Features:Intermediate between distortion and overdrive， different from the normal diode clipping circuit.Hybrid OCD distortion of solid state or vacuum tube tone， create the tone of a tube amplifier at volume.Soothing and sweet tone & more active redundancy.Effects of electron tube amplifier and complex harmonic spacious sound.3 adjustable knobs:Gain: Adjust the degree of distortion;Tone: Adjust the intensity of the tone;Level: Adjust the volume of the sound.Also added High and Low switch to tailor overdrive frequencies to your liking.Specifications:Input impedance: 1M ohmsOutput impedance: 1K ohmsRunning current: 6maPowered by: 1 * 6F22 9V battery / DC 9V adapter (neither included)Material: Aluminum alloyColor: Black & redEffect pedal size: Approx. 12 * 6.7 * 5.6cm / 4.7 * 2.6 * 2.2inEffect pedal weight: 301g / 10.6ozPackage size: 12.8 * 7.5 * 6cm / 5.0 * 3.0 * 2.4inPackage weight: 333g / 11.7ozPackage List:1 * Guitar Effect Pedal1 * User Manual (English)