Features: 1.With this preamp, you spend less time tweaking controls and more time playing. 2.The pickup is more than just a switch, it also has the actual loudness control function, so you can precisely determine the height and get the right sound. 3.5 band (Bass, midd.2, midd.1, Treble, Presence) is suitable for all guitarists wishing to improve their sound. 4.The phase switch provides additional feedback control by allowing the phase inversion of the pickup relative to the amplification speaker. 5.LCD display, easy to read. specification: 1. With this preamp, you spend less time tweaking controls and more time playing. 2. The pickup is more than just a switch, it also has the actual loudness control function, so you can precisely determine the height and get the right sound. 3. 5 band (Bass, midd.2, midd.1, Treble, Presence) is suitable for all guitarists wishing to improve their sound. 4. The phase switch provides additional feedback control by allowing the phase inversion of the pickup relative to the amplification speaker. 5. LCD display, easy to read. : Item Type: Guitar Pickup Material: PC Plastic Color: Black Output: 6.35mm Power Supply: 1 x 6F229V (Not Included) Size: Approx. 97 * 65 * 56mm / 3.8 * 2.6 * 2.2in Weight: Approx. 108 g / 3.8in Package list: 1 * Guitar Pickup 1 * Piezo Pickup 4 * Screw 3 * Screw Nut 1 * Sticker