Made of sturdy zinc alloy shell, this noise killer effect pedal with threshold control knob is easy to operate and practical to use. Perfect accessory for electric guitar and bass. Features: The noise killer effect pedal is mainly used for reducing the noise during gain operation, cable connection, and for steady or dynamic noise suppression. It retains the and natural sound to the greatest extent, making you enjoy your performance. Suitable for electric guitar and bass. Threshold control knob allows you to adjust the parameters to retain the most realistic sound you like. With true bypass switch and LED working status indicator light. Zinc alloy shell and compact size design, durable and exquisite, lightweight and portable. Note: 1. The power adapter is not included. 2. Color and size may be slightly different due to manual measurement and different light conditions. Thanks for understanding. Specifications: Color: Blue Material: Zinc Alloy Power Supply: DC 9V Item Size: 11 * 5.9 * 4.8cm / 4.33 * 2.32 * 1.89in Item Weight: 320g / 11.29oz Package Size: 15 * 8 * 6cm / 5.91 * 3.14 * 2.36in Package Weight: 380g / 13.40oz Package List: 1 * Effect Pedal 1 * Fastener Sticker