In the Ear Hearing Aid S-212(hot sale)
Features：
This product is a delicate ear hearing aids, compact body, curved appearance designed according to auricle, wear secluded. especially use for your entertainment, leisure, listening to opera, watching television and movies, meeting communication or students in the calss, to make the sound effect clear and lound, good choice for people who need.
Technical Parameters：
1.Max Out: ≥120dB
2.Max Gain：≥30dB
3.Average Gain：≥38dB
4.Harmonic Distortion：a)≤10%(Frequency< 1000Hz)
b)≤4%(Frequency >1000Hz)
5.Equvi Input Noise：≤30dB
6.Frequency Range：≥250Hz～3500Hz
Stanard battery：AG3 or AG312 button cell
Voltage：D.C. 1.5V
Current：≤4mA
Product Weight：3g
Product Size：1.9*1.4*1.6cm
Package: Plastic Box
Package Size：11.1*8.4*3.3cm
Carton quantity：120PCS
Carton Size：52.5*31*39cm
GW：11kg
NW：9kg
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