The FESTRA RBT02 Guitar Tuner Clip-On Tuner Digital Electronic Tuner Acoustic with LCD Display for Guitar, Bass, Violin, Ukulele is a great choice for musicians of all levels. It is easy to use, accurate, and affordable. The tuner is clip-on, so you can attach it to the headstock of your guitar or other instrument and start tuning immediately. The LCD display is clear and easy to read, and it shows you whether you are sharp, flat, or in tune. The tuner has four modes: guitar, bass, violin, and ukulele. This makes it a versatile choice for musicians who play multiple instruments. The FESTRA RBT02 Guitar Tuner is powered by a single 3V lithium battery, which is included. It also has an automatic shut-off feature to preserve battery life. Features: Clip-on design for easy attachment to your instrument Clear and easy-to-read LCD display Four modes: guitar, bass, violin, and ukulele Automatic shut-off feature Powered by a single 3V lithium battery (included) Benefits: Easy to use and accurate Versatile for musicians who play multiple instruments Affordable price Portable and convenient How to use the FESTRA RBT02 Guitar Tuner: Clip the tuner to the headstock of your guitar or other instrument. Select the appropriate mode for your instrument. Play a string on your instrument. The tuner will display whether you are sharp, flat, or in tune. Adjust the tuning peg of the string until the tuner displays that you are in tune. Repeat steps 3-5 for each string on your instrument. The FESTRA RBT02 Guitar Tuner is a great choice for musicians of all levels who are looking for an easy-to-use, accurate, and affordable tuner.