Item Type: Guitar Effect Pedal Material: Metal Colour: Yellow Input Impedance: 470k Ohms Output Impedance: 100 Ohms Product Power Supply: 9V DC power adapter, negative polarity inside and positive outside (the adapter is not included in the product). Package List 1 x Guitar Effect Pedal 1 x User Manual 1 x Hook and Loop Fastener 1 x Sticker 1Easy Control: Equipped with control button and switch, the operation of this effect pedal is very easy. 2High Accuracy: Has high accuracy and high sensitivity as well, making your playing more attractive. 3True Bypass: True bypass design with foot pedal switch can effectively avoid pressing operation button. 4Reliable Use: The input impedance is 470k ohms, and the output impedance is 100 ohms, very reliable. 5Connection: 1/4in mono audio interface is used for signal output, and the connection is very simple.