Feature:1. EASY TO SWITCH: AMT100 rechargeable clip on tuner can be used as a tuner or metronome, allo you to rotate 180 to switch modes automatically2. USB RECHARGEABLE: Metronome come with built in rechargeable battery, can be charged via the included USB cable easily, you can use with confidence3. CLEAR LCD: Guitar tuner adopt high definition color screen to make operating easier and clear. Support users setting memory function, more useful4. FLEXIBLE AND PRACTICAL: Guitar clip on tuner is very flexible to change angles for better reading information, provide great convenience for your practice5. APPLICABLE SCENARIO: Metronome can be placed in front or on rear of the instrument. Suitable for chromatic, guitar, bass, ukulele, violin tuningSpecification:Item Type: Guitar TunerModel: AMT-100Color: BlackTuning Items: Chromatic(C), Guitar(G), Bass(B), Ukulele(U), Violin(V)Tuning Detection Range: A0(27.5Hz)-C8(4186.00Hz)Tuning Mode: Clipping on instrument by picking up vibration onlyTuning Pitch Range: 430Hz-450HzTuning Accuracy: 0.5 CentMetronome Tempo Range: 30bpm-260bpmBeats: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9Power Supply: Rechargeable built in battery 3.7V 110mAHWeight: 28 g / 1 oz(approx.).Package List:1 x Tuner1 x USB Cable1 x User ManualNote:Please operating it at a suitable distance from radio, television and other electrical devices.