SALE
2024 Best Rechargeable Digital BTE Hearing Aid Adjustable Tone Sound Amplifier Portable Deaf Elderly Hearing Aids
$41.99$83.9850% off
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Color: Blue 1 pcs
1.Max sound output:118±4dB
2.Sound gain: ≥32dB±2dB
3.Total harmonic wave distortion: ≤7%
4.Frequency range:300-4500MHz
5.Input Noise:≤32dB
6.Voltage:d.c.3.7V
7.Current:≤2mA
8. Full charging about 2-4 hours
9. Normal working about 35 hours