Get in tune (and stay in tune) with the easy-to-use help of this Boss TU-05 Deluxe clip-on tuner. It attaches right to the headstock of your guitar, bass, ukulele, or other stringed instrument and features a vibrant display so you can tune your instrument with precision. It’s conveniently equipped with a rechargeable battery and delivers up to 10 hours of continuous use between charges.