- Tuning Item: Chromatic, Guitar , Bass
- Tuning range: A2(27.5)~a3(1760Hz)
- Power: 9V (DC IN or 6F22 battery 1 piece)
- A4 Frequency: 435Hz~445Hz
- Electricity: ≤35mA (Under tuning state)
- Volume: 120mm(L)x64mm(W)x59.5mm(H)
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