Features: 4 band acoustic guitar pickup delivers precise frequency control, featuring metal/plastic construction and seamless compatibility with standard acoustic & box guitars. Adjust bass, treble frequencies effortlessly via pre wire 2.5mm plug cable, packaged with mounting base, endpin, screws, and spacers for easy installation. Ideal for guitarists, luthiers, and box instrument enthusiasts seeking studio grade tone customization in compact setups. Perfect for live performances, home recording, or enhancing resonance in handmade box guitars. Optimize sound claritys across genres with this acoustic guitar accessory, backed by corrosions resistant components and vibrations stable alloy housing. Specifications: Component: Plastic Size: As Pictures Show Package Includes: 1 Set Pickup Equalizers note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.