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Rechargeable Mini Digital Hearing Aid Sound Amplifiers Wireless Ear Aids for Elderly Moderate to Severe Loss Drop Shipping


Price:
$21.98

Free Shipping


Overview and Specifications:

Product Attribute
Model Number : 874
Origin : US

Features:
1.Max sound out put:129+/- 3dB
2.Sound gain:>= 40dB+/- 5dB
3.Total harmonic wave distortion:<= 10%
4.Frequency range:450-3400MHz
5.Input Noise:<=32dB
6.Voltage:d.c.1.2V
7.Current:<=2mA
8. Full charging with 8 hours
9. Working about 28 hours