Item Type: Guitar Effect Pedal Material: Metal Colour: Lake Blue Product Applicable Power Supply: External 9V AC power adapter, internal negative and external positive (not included in the product). Length: Approx.9cm / 3.54in Width: Approx.4cm / 1.57in Package List 1 x Guitar Effect Pedal 1 x User Manual 1 x Hook and Loop Fastener 1 x Sponge Use a qualified external power supply to power the effector. The power supply specification is 9V internal negative and external positive, and the power supply current is not less than 300mA. 1Effect Pedal: This analogue overdrive effect pedal will offer warm tone with switchable additional shine circuit. 2Easy Switching: Can switch between buffer or mechanical relay, and the convenient operation will save your time. 3Simple Control: Equipped with Drive, Level and Tone knobs, which enable accurate and easy control on the pedal. 4Metal Shell: The sturdy metal shell with pretty lake blue colour ensures excellent durability for long term use. 5Easy to Carry: Comes with small size and light weight, both the carrying and storage are very easy for daily use.