Features:Model: EMT-320.Product Name: Clip-backlit tuner metronome.Features: green backlight、 beautifully compact、 freely adjust the angle of rotation.Tuning Project: guitar、 bass、 violin、 Ukulele、 Chromatic (C、 F、 bB、 bE optional).Pickup mode: MIC pickup or caught in the instrument pickup.Choose lower tone: b、 bb、 bbb、 bbbb.Pickup range: 42Hz-1760Hz.A4 Frequency range: 430-450Hz.Tuning error: ?¨¤ 0.5 cents.Tempo: 30-250 beat / min.Tempo type: 0、1、2、3、4、5、6、7、8、9.A time when:Volume control: Mute、 midrange、 treble.Beat error: less than 0.5%.Tuning function: guitar、 bass、 violin、 Ukulele、 tempered and other standard pronunciation.Size: ?¨¹45mm ?¨¢ 48mm ?¨¢ 72mm.Weight: 55 grams.Color:black.Power supply: one CR2032 button battery.Package included:1 x tuner.