Battery Type: Li-ion Battery
Operating Voltage: 0.2±0.1V
Operating Current: =< 4mA
Dimension
1.8 x 1.4 x 1.6cm / 0.7 x 0.5 x 0.6in(H x L x T)
Others
Maximum Saturation Sound Pressure: 129dB ± 4dB
Maximum File Acoustic Gain: 48dB ± 5dB
Harmonic Distortion: =< 18%(450=< F=<5000)
Frequency Response: 450-3000Hz
Equivalent Input Noise: =< 30dB