D'Addario Twin-Pack Eclipse Rechargeable Headstock Clip On Guitar Tuner, PW-CT-27, Black

QUICK TUNING: Tune your guitar or bass with ease with the Eclipse Guitar Tuner. Featuring quick and accurate tuning, large screen, and strong clamp that is adjustable for a variety of viewing angles. RECHARGEABLE: Enjoy 24 hours of guitar tuning time per charge without changing or buying batteries. Simply plug the supplied USB cable into any USB power device as needed. EXTREME ACCURACY: Great accuracy with a wide calibration range (435-450Hz) guarantees precise performance. Calibration is also adjustable. EASY TO READ & ADJUSTABLE SCREEN: Screen is a vertical, full color display with limitless viewing angles. The dual swivels makes mounting perfect for left handed or right handed players anywhere on the headstock. STRONG CLAMP: The Eclipse clip on guitar tuner can be mounted anywhere on the headstock without worries of slipping.