A4 Frequency: 436-445Hz (calibrated in 1Hz steps)
Tuning Range: 0A(27.5Hz)-8C(4186.01Hz)
Input impedance: 1 M-ohm (tuner on)
Current consumption: 55mA max
Power: 9V battery (1) or AC adapter (9V 600mA or greater )
Battery Life: Approximately 5 hours continuous use with
tuner on (A4 input in continuous use, in meter mode)
Weight: 430g (including battery)
Dimensions: 76(L)X120(H)X46(W)mm