Experience the ultimate sound quality with this Guitar Effects Pedal Cabinet Simulation. Enhance your bass guitar performance with analog effects and cabinet simulation for a professional sound. The compact and design makes it easy to carry and use during gigs or practice sessions. Perfect for bass guitar enthusiasts looking to elevate their sound experience. 100% new, high-quality. Display screen: Display the current preset (01-32) number or BYPASS status (showing bp on the screen). Input interface: 1/4Inch mono audio input interface; Output interface: 1/4Inch mono audio output interface. Balanced output interface: XLRbalance output interface. 1. Power interface: Use a 9V1A DC former (negative inside and positive outside) 2. USB interface: Supports 5V power supply, it is recommended to use a 5V1A adapter 3. Earphone interface: Supports connecting 3.5mm headphones for use. 4. LOW CUT knob: Adjust the frequency point of global low-frequency cutting and adjust 32 preset output tones as a whole. Cutting range 30HZ-360HZ (Rotate the knob counterclockwise to at 30HZ, which means low frequencies below 30HZ are cut off. Rotate the knob clockwise to at 360HZ, which means low frequencies below 360HZ are cut off.) 5. HICUT knob: Adjust the frequency point of global high-frequency cutting and adjust 32 preset output tones as a whole. The cutting range is 18kHZ-1kHZ (Rotate the knob counterclockwise to at 18kHZ, which means high frequencies above 18kHZ are cut off. Rotate the knob clockwise to at 1kHz, which means high frequencies above 1kHz are cut off.) 6. VOL knob: Adjust the total output volume of the IR BOX and input external audio through USB The quantity is uncontrollable. 7. Left button: Select preset forward. and hold the left and right buttonssimultaneously to enter BYPASS mode 8. Right button: Select preset backwards. and hold the left and right buttons simultaneously to enter BYPA