Features:
Digital DSP desgin, Reduce Noise, Without whistling
1. Max sound out put:123+/- 5dB
2. Sound gain:>= 30dB+/- 5dB
3. Total harmonic wave distortion:<= 5%
4. Frequency range:300-4500MHz
5. Input Noise:<=28dB
6. Voltage:d.c.1.2V
7. Current:<=0.8mA
8. Charing box:
Include 300mAH
Full charing about 2 hours
OK to hearing Amplifiers recharing about 3~4 times
9. Hearing Amplifiers:
Include 35mAH
Full charing about 2 hours
Working more than 30 hours, and total more than 90 hours with charging case.

Type:Hearing Aid
Note: To protect your hearing, please don't use this product at a high volume for a long time.
Not suitable for the crowd
1.According to the average frequency of pure tone audiogram language frequency calculation, or in the 0-30dbwithout the use of hearing aids
2.Sudden deafness,especially occurring within three months
3. Tinnitus, unilateral or bilateral
4.Rapidly progressive hearing loss
5.Obscure aural crowds with unexplained hearing
6. Serious binaural otitis externa, otitis media, pus,and double external auditory canal closure
Package Include
2X Hearing Aid
6 X Earplug
1XRecharger
TIPS:
The actual color and shape of the item might looks slightly different from pictures because of the technical improvement and manufacturing variance or Computer screen color difference.