Passive Piezo End Pin Output Jack made of brass material with a finish for enhanced durability. Standard 1/4 inch output jack and 1/8 inch input jack, compatible with acoustic instruments for versatile use. High sensitivity transducer style piezo pickup with a 1/8 inch jack, ensuring excellent sound quality and performance. Features a high sensitivity red piezo pickup, designed for optimal sound capture in acoustic guitars. The Passive Piezo End Pin Output Jack is crafted from high-quality brass material with a -plated finish, ensuring durability and reliability. It features a standard 1/4 inch output jack and a 1/8 inch input jack, making it suitable for acoustic instruments. The high sensitivity transducer style red piezo pickup captures sound with exceptional clarity, perfect for acoustic guitars. , this product is easy to install. The package includes one passive piezo output jack and one guitar piezo pickup, making it a complete solution for enhancing your acoustic sound. Color: As shown Material: Metal Package Contents: 1*Guitar Endpin Preamp Pickup Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.