USB Guitar Tuner, High Definition Color Screen USB Power Cord Convenient To Use Violin Tuner, for Guitar Bass White Specification: Item Type: Guitar Clip-On Tuner Model: AT-102 Material: ABS + PMMA Suitable or Musical Instruments: 12 equal temperament, guitar, bass, violin, ukulele Pickup Range: A0-C8 Battery: 110mah lithium battery Power Supply: UCB DC5V A4 Frequency Range: 430-450hz Cent Display: ?50 Package List: 1 x Guitar Clip-On Tuner 1 x USB Cable 1 x User Manual