FeaturesA mixture of a signal booster and overdrive effect.Aluminum alloy housing， good durability.Mini size， compact and space-saving.Durable jacks and foot switch.True bypass design， minimizes tone loss and get more control of your pedal.Specification:Color: GreenMaterial of housing: Aluminum alloyInput impedance��1M OhmsOutput impedance: 10K OhmsPower requirement: 9V DC battery / DC adapter (not included)Product size: 6.3 * 12 * 3.5cm / 2.5 * 4.7 * 1.4inProduct weight: 245g / 8.6ozPackage size: 9 * 13 * 5.5cm / 3.5 * 5.1 * 2.2inPackage weight: 305g / 10.8ozPackage List:1 * Drive core1 * User manual (English & Chinese)