Sound Collector for the Elderly (A39 Skin Color Charging Hearing Aid Earphone)

Features:   1.Max sound out put:117+/- 3dB   2.Sound gain:>= 25dB+/- 5dB 3.Total harmonic wave distortion:<= 7%   4.Frequency range:400-4500MHz   5.Input Noise:<=32dB   6.Voltage:d.c.1.2V   7.Current:<=6mA 8.Main... Read more

$153.94 $93.99 Excl. VAT

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