Features 1、Professional Acoustic Guitar Equalizer: This EQ preamp for acoustic guitars features a tuner to enhance and improve your sound quality for a professional and polished performance. 2、Versatile Tone Control: With bass, mid, treble, Pres.brilliace, volume, and power control knobs, this equalizer is designed to meet your unique sound preferences and requirements, allowing for customized and optimal sound settings. 3、Easy Installation: Equipped with pickup wire, mounting screws, adhesive pad, and cable ties, this EQ preamp is easy to install and assemble, providing convenience and easy setup for guitar players of all levels. 4、5 Band Preamp for Piezo Pickups: This 5 band preamp is an excellent accessory for both electric and acoustic guitars, catering to a wide range of musical styles and performances. 5、Enhance Your Guitar's Sound: Elevate your guitar playing experience with this versatile EQ preamp, perfect for achieving professional grade sound and performance on the stage or in the studio. Choose our acoustic guitar equalizer for superior sound control and customization. Specification Item Type: Guitar EQ Preamp Material: Plastic Band: 5 Low: 12dB Mid: 12dB High: 12dB Pressure: 12dB Frequency Response: 20Hz to 20KHz Working Power: 1 x 9V 6F22 Alkaline Battery (Battery not included) Package List 1 x Equalizer 1 x Guitar Pickup Stick 1 x Cable 1 x Cable Tie 1 x Suction Cup 4 x Screw 1 x Washer 2 x Nut Plate