This is the OCTOPUS BOOSTER, a bass preamp/booster from BassFX. It's a clone pedal designed based on the renowned Darkglass "Harmonic Booster." It's a "clean bass preamp" that can enhance the sound's contours and boost specific frequency ranges without compromising the original sound. In addition to the 3-band EQ, the Character knob and mid-frequency selection (250Hz - 2.5kHz) allow for versatile and detailed sound shaping. 【Condition】 It's practically unused, having only been used once to check the sound. 【Highlights】 This is a very high-quality clone model with the potential to make you think, "I should just buy the original." It's perfect for those who want to achieve the brilliant and punchy tone of Darkglass at a reasonable price. It's in near-new condition, so you can use it with confidence.