Feature:1. This compact clip on tuner is suitable for halftone / guitar / bass / ukulele / violin.2. Come with built-in battery, you can also easily connect and charge with the attached USB power cord.3. High definition color screen is adopted to make the operation easier and clearer.4. The clip-on tuner is very flexible to change angles to better read the information.5. The product can be placed in front of or behind the instrument, both way will obtain excellent effect.Specification:Item Type: Guitar Clip-On TunerModel: AT-102Material: ABS + PMMASuitable or Musical Instruments: 12 equal temperament, guitar, bass, violin, ukulelePickup Range: A0-C8Battery: 110mah lithium batteryPower Supply: UCB DC5VA4 Frequency Range: 430-450hzCent Display: 50.Package List:1 x Guitar Clip-On Tuner1 x USB Cable1 x User Manual