Feature: 1. 【Powerful Optical Compression】: This bass compression pedal features an optical compressor that delivers strong compression, transparent tone, and clear sound production. The ATTACK and SENSE functions enhance the compression effect, providing versatility and depth to your bass guitar sound. 2. 【Versatile Functionality】: In addition to compression, this pedal can also boost volume and enhance penetration when needed, making it a multi-functional tool for bass players looking to fine-tune their sound. 3. 【True Bypass Design】: With a genuine bypass design, this pedal ensures that your original bass tone remains unaffected when the pedal is not engaged, preserving the integrity of your sound. 4. 【Sturdy Aluminum Alloy Shell】: The pedal is housed in a sturdy aluminum alloy shell, ensuring longevity even with frequent use and transport. 5. 【Convenient Connectivity】: Equipped with 6.35mm input and output interfaces, this pedal is compatible with a wide range of bass guitars and audio equipment, providing seamless integration into your existing setup.  Specification: Features: 【Powerful Optical Compression】: This bass compression pedal features an optical compressor that delivers strong compression, transparent tone, and clear sound production. The ATTACK and SENSE functions enhance the compression effect, providing versatility and depth to your bass guitar sound. 【Versatile Functionality】: In addition to compression, this pedal can also boost volume and enhance penetration when needed, making it a multi-functional tool for bass players looking to fine-tune their sound. 【True Bypass Design】: With a genuine bypass design, this pedal ensures that your original bass tone remains unaffected when the pedal is not engaged, preserving the integrity of your sound. 【Sturdy Aluminum Alloy Shell】: The pedal is housed in a sturdy aluminum alloy shell, ensuring longevity even with frequent use and transport. 【Convenient Connectivity】: Equipped with 6.35mm input and output interfaces, this pedal is compatible with a wide range of bass guitars and audio equipment, providing seamless integration into your existing setup. Specifications: Product Material: Aluminum alloy shell Power Supply: AC adapter 9V (center negative) Current Consumption: 50mA Product Color: Green Product Size: 10 * 4 * 12cm/3.9 * 1.6 * 4.7inch Product Weight: 337g/11.9oz Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Please allow slight manual measurement deviation for the data. Packing List: 1 x Effects Pedal Package List: 1 x Effects Pedal