1、EXCELLENT SOUND: Ultra clear 20dB gain acoustic excitation, and 2 stage ±15dB equalization adjustment help to get clean and powerful sound. 2、METAL SHELL: The pure boost effect has an all metal shell, which is hard and wear resistant, not easy to deform, and has a long service life. 3、STABLE PERFORMANCE: Pure straight through design effect pedal, which has smooth signal transmission, stable performance and less interference. 4、1/4IN INTERFACE: The boost effect pedal has 1/4in mono input and output audio interfaces, easy to connect and have low impedance. 5、POWER SUPPLY: Adopt 9V DC transformer for power supply, widely applicable to all kinds of audio equipments, has strong practicability. Item Type: Pure Boost Effect Material: Metal Color: Beige Grey Product Input: 1/4in Mono Audio Interface (Impedance: 1MΩ) Product Output: 1/4in Mono Audio Interface (Impedance: 10kΩ) Power Supply: 9V DC transformer (inside negative outside positive) Working Current: 6mA 1 x Effect 1 x Sticker 1 x User Manual