Features:

Chromatic tuner for guitar, bass, violin, and ukulele.
Rechargeable battery with 10-hour use.
High-contrast display with flexible clip.
Auto power-off for longer battery life.

Specifications:

Tuning range: A0 (27.50Hz) ~ C8 (4186Hz)
Detection method: Piezo (Clip)
Reference pitch: 431Hz~449Hz
Tuning precision: +/-1 cent
Power: Built-in rechargeable Li Po battery
Dimensions: 49mm x 26mm x 40mm (1.93” x 1.02” x 1.57”)
Weight: 21g (0.74oz)