FLATSONS Multifunctional Preamp Effector Guitar Effect Pedal Processor Universal Guitar Bass Effectors Stringed Instrument Parts Accessories with Tuner Mode This guitar effect pedal is made of quality aluminum material, high strength, wear resistant and can provide long service time. Five interfaces design, it can be connected with computers/convertor, amplifier, smartphone, earphone, guitars. It integrates delay effect, reverberation effect, and so on, you can choose the effector mode you want. Support hardware true pass-through,  it also has tuner mode to meet your different needs. Features: Made of quality aluminum material, high strength, wear resistant and can provide long service time. The anti-slip rubber pads on the back can provide fine stability and avoids scratching the panel. Five interfaces design, it can be connected with computers/convertor, amplifier, smartphone, earphone, guitars. It integrates unvoiced sound effect, overload effect, overdrive effect, metal muff effect, you can choose the effector mode you want. Support hardware true pass-through,  it also has tuner mode to meet your different needs. Specifications: Name: Guitar Effector Material: aluminum Color: Black Battery: 1 * 16340 battery, 3.7V, 650mAh (included) Standard input level: -20dBu Input impedance: 1MΩ Standard output level: -20dBu Line output impedance: 1KΩ Headphone output impedance: 10Ω Recommended load impedance: 10kΩ---or 32Ω earphone Current: 100mA Item size: 96 * 50 * 42mm / 3.78 * 1.97 * 1.65in Item weight: 173.5g / 6.12ounce Package size: 115 * 50 * 55mm / 4.53 * 1.97 * 2.17in Package weight: 200g / 7.05ounce Packing List: 1 * Guitar Effector