1.5" LCD Clip-On Digital Tuner (1 x CR2032)
Model: ET-39 - Color: Black - Plastic material housing - 1.5" color LCD display - A4 frequency: 440Hz - Tuning items: G (guitar); B (bass); V (violin); C (chromatic); U (ukulele) - Tuning range: A0 (27.5Hz)~A6 (1760Hz) - Accuracy: +/- 0.5 cent - Powered by 1 x CR2032 battery (included) - Chinese / English user manual was included