Feature: 1. ENJOY MORE PLAYING TIME: With this guitar tuner, you can spend less time adjusting controls and more time playing. An ideal tool for guitarists. 2. 2 BAND TONE CONTROL: Featuring bass and treble adjustments, this tuner is perfect for all guitarists looking to enhance their sound. 3. ACCURATE AND CONVENIENT: Tune your acoustic guitar accurately and conveniently. Whether you're practicing at home, performing on the stage, or recording in the studio, you can easily tune your instrument anytime, anywhere. 4. SIMPLE INSTALLATION: This preamp tuner is easy to install, allowing you to quickly and effortlessly enhance the sound of your guitar. 5. DURABLE AND RELIABLE: Made from premium plastic materials, this guitar tuner is built to last and to withstand the demands of regular use. Specification: Item Type: Acoustic Guitar Tuner Material: Plastic Power Supply: 1 x 9V6F22 carbon battery (shipped without battery) . Package List: 1 x Guitar Tuner 1 x Guitar Pickup Stick 1 x Output Cable 1 x Cable Tie 4 x Screws 1 x Mounting Bracket 1 x Washer 2 x Nuts