Feature: 1. The Vintage Phase pedal beautifully re-creates the classic phaser sounds of the 70\u0027s 2. Easy to use, with just the single \"speed\" control knob--you can adjust the effect speed. 3. True bypass design minimizes tone loss. 4. Aluminum alloy casing with stoving varnish finish. 5. LED indicates working and power statement. 6. The Vintage Phase pedal beautifully re-creates the classic phaser sounds of the 70\u0027s. 7. Easy to use, with just the single speed control knob--you can adjust the effect speed. 8. True bypass design to minimize the tone loss and provide transparent tone. 9. Aluminum alloy casing with stoving varnish finish, stable and strong. 10. The Vintage Phase pedal beautifully re-creates the classic phaser sounds of the 70\u0027s; fans of Van Halen love will love it so much! 11. Easy to use, with just the single “speed” control knob--you can adjust the effect speed. Specification: Features: The Vintage Phase pedal beautifully re-creates the classic phaser sounds of the 70's; fans of Van Halen love will love it so much! Easy to use, with just the single "speed" control knob--you can adjust the effect speed. True bypass design minimizes tone loss. Aluminum alloy casing with stoving varnish finish. LED indicates working and power statement. Specifications: Color: Golden Material: Aluminum alloy Input impedance: 500K ohm Output impedance: 10K ohm Speed range: 0.2HZ-14HZ Running current: 13mA Power: 6F22 9V battery / DC 9V adapter (Neither included) Item size: 12 * 7.1 * 5.8cm / 4.7 * 2.8 * 2.3in Item weight: 291g / 10.3oz Package size: 13 * 7.9 * 6.2cm / 5.1 * 3.1 * 2.4in Package weight: 336g / 11.9oz Package List: 1 * Effect Pedal 1 * User Manual (English & Chinese) Note: No battery or adapter is included. Please use the 9V power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly. Package List: 1 * Effect Pedal 1 * User Manual (English & Chinese) Note: No battery or adapter is included. Please use the 9V power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly.