- Hearing aid
- 2017-01-16 02:45
- Max Sound Output:130 ±5 dB Max Sound Gain:=50 dB Harmonic Wave Distortion:=5‰ Frequency Range:300~4000 hz Input No
- mobile phone speaker
- 2017-01-16 02:44
- this is a mobile phone parts,speaker used in all kinds of mobile phones,especially in Nokia.At the same time,we also pro