3 functional knobs(rate/depth/mix) for adjusting the performance of the phase effect. Warm analog phase effect makes the guitar sound more excellent. Mix knob flexibly adjusts the mixing ratio of phase effect and for original-sound. Full metal shell, and sturdy, and compact. Mini palm size, compact, portable and easy to operate. With true bypass switch and LED working status indicator light. No slip silicone pads on the bottom, which making the effect pedal non shifting and anti slip during performance. Input Impedance:1M ohms Output Impedance:10K ohms Power:External AC adaptor delivering 9V DC regulated minimum 300mA Item Weight:167g/5.91oz Color:Orange Material:Metal Size:94x54x51mm/3.70x2.13x2.01in Package Contents: 1 * Electric Guitar Effect Pedal Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.