Axon Hearing Aid Machine, Hearing Machine X168, Hear Mach...
$54.45
$72.42
Product details of Axon Hearing Aid Machine, Hearing Machine X168, Hear Machine – Pregnancy Test Kit BTE hearing aid Max sound output: 129dB ± 4dB Max sound gain: 50dB ± 5dB Harmonic wave distortion: approximately 5% Frequency range: 450~3500 Hz Input noise: approximately 30 dB Battery: AG13 Working voltage: dc1.5V Working current: Before wearing, adjust the volume to the minimum. Choose a slightly larger earplug to discourage whistler. Gradually increase volume to prevent abrupt sound changes. #pregnancy test kit
