Make Your Own Great Music!The JF - 01 Overdrive Pedal introduces warm overtones when being used as a clean volume boost. The circuit features true bypass design， and the world-renowned RC4588 chip provides a full sound. The smooth tones and rich harmonics it creates have made it a favorite among blues， rock and fusion guitar players. If you play classic rock， modern or hard rock， country， blues or rock-a-billy， you'll love what you hear!Features:A representation of the classic Tube Screamer， with an updated RC4588 chip.The overdrive effect is mellow， mild， smooth and exquisite.True bypass design to minimize the tone loss.Aluminum alloy casing with stove varnish finish.Powered by 1 x 6FF22 9V battery Drive， Tone， and Volume Controls: Drive: Adjust the degree of distortionTone: Adjust the intensity of the toneVolume: Adjust the volume of the sound Brand: JOYO Model : JF - 01 ArrayPackage weight: 0.406 kg Product size (L x W x H) : 11.8 x 6.5 x 5.5 cm / 4.64 x 2.55 x 2.16 inches Package size (L x W x H) : 13 x 7.7 x 6.4 cm / 5.11 x 3.03 x 2.52 inches Package Contents: 1 x JOYO JF - 01 Vintage Overdrive Electric Guitar Effect Pedal，1 x Bilingual User Manual in English and Chinese， 1 x Battery