Zeitel Guitar Tuner with Metronome, Clip On Tuner for Guitar Automatic Digital Tuner  (Chromatic: Yes, Black)

2 IN 1 TUNER AND METRONOME: 2 in 1 musical instrument tuner and metronome combines 2 basic essential tools for all new beginners and professionals-tuner & metronome, one button to switch working mode, helping to tune your instrument correctly and keep a consistent beatUSB RECHARGEABLE: This rechargeable digital tuner with built in 120mAh rechargeable battery, USB charging, can be powered by powerbank or connecting any 5v, 2a power adapter.COLOUR SCREEN DISPLAY: The clear colour screen design can display the tuning status and beat clearly.5 function buttons includes, power switch, mode switching, pitch down adjustment, increase/decrease A4 benchmark.ADJUSTABLE ARM: Flexible to adjust the position of tuner accordingly. Adjustable arm allows you can rotate the tuner device 360 ° for your convenience or adjust the screen back and forth.STABLE CLIP ON DESIGN: Strong clamp design can well fix the tuner on your guitar, Bass Ukulele, Violin, Banjo, etc, while the silicone patch can protect your guitar from scratches when using the tuner. And you can detach the tuner device from the clip to use for your needs.