This portable chorus effect pedal is compact and exquisite; it has 3 control knobs and can make you greatly enjoy your electric guitar or bass playing. Features: The VIBROCK effect pedal can provide excellent chorus , simulate the vivid effect of kneading strings. Suitable for electric guitar and bass. 3 control knobs for adjusting speed, depth, level. Shape your sound through gain, tone, and master control. Adds crisp bite and allows you to adjust the color of overload sound. With true bypass switch and working status indicator . Zinc alloy shell and compact size design, durable and exquisite, lightweight and portable. Note: 1. The is not included. 2. Color and size may be slightly different due to manual measurement and different conditions. Thanks for understanding. Specifications: Color: Purple Material: Zinc Alloy Power Supply: DC 9V Item Size: 11 * 5.9 * 5.3cm / 4.33 * 2.32 * 2.09in Item Weight: 210g / 7.41oz Package Size: 15 * 8 * 6cm / 5.91 * 3.14 * 2.36in Package Weight: 248g / 8.75oz Package List: 1 * Effect Pedal 1 * Fastener Sticker The VIBROCK effect pedal can provide excellent chorus , simulate the vivid effect of kneading strings. Suitable for electric guitar and bass. 3 control knobs for adjusting speed, depth, level. Shape your sound through gain, tone, and master control. Adds crisp bite and allows you to adjust the color of overload sound. With true bypass switch and working status indicator . Zinc alloy shell and compact size design, durable and exquisite, lightweight and portable.