Check the listing for details. Kmise Roll Boost Electric Guitar Effects Pedal Mini Single Type DC 9V True By.... Color: Roll Boost, Condition: New. Listed at 25.28 USD. Kmise Roll Boost Electric Guitar Effects Pedal Mini Single Type DC 9V True Bypass ✓ Free 60 Day Returns ✓ Free Express Shipping Description: Features: Integrated Noise Reduction: Developed with the code to reduce noise swells common with Roll Boost circuit, you get the quietest effect possible with this Roll Boost pedal.Pure Signal:True bypass switching maintains pure signal flow when the Roll Boost pedal disengaged. Dedicated Gain & Volume &Tone knobs allow for precise effect tailoring.Solid Quality: The whole Roll Boost guitar pedal is made of aluminum alloy and classic, stable and strong. Aluminium alloy body makes this Roll Boost pedal safe to transport.Easy Carry: Powered by a DC 9V adapter (not included in this package),this Roll Boost pedal has a small size body, light weight, suitable for out side gigs.Lifetime Promise: Unbelievably inexpensive one-knob setup,it's obviously simple to use. For any problem with this Roll Boost pedal, just contact us for a perfect solution, we are always here and help! Product Details: Brand: lotmusicStyle: ClassicColor: Roll BoostProduct Dimensions: 2.05"L x 1.65"W x 3.62"HItem Weight: 4.6 OuncesItem Weight: 4.6 ouncesProduct Dimensions: 2.05 x 1.65 x 3.62 inchesCountry of Origin: ChinaItem model number: MI3430Date First Available: March 26, 2021Color Name: Roll BoostSignal Format: AnalogPower Source: Corded ElectricVoltage: 9 Volts