Rechargeable Hearing aid
Max Sound Output:129±4 dB
Max Sound Gain: 50dB ± 5dB
Harmonic Wave Distortion: ≤5%
Frequency Range: 450~3500hz
Input Noise: ≤30 dB
Battery: Lithium Battery
Working Voltage: dc 3.7V
Working Current: ≤3mA
Color: As the picture shows
Item Size: 6.6 x 1.3 x 1.3cm
Package Size: 15.3 x 9.6 x 3.8cm
Net Weight: 26g
Please don’t use the computer charge.
Please don’t charge more than 6 hours.
1 x Hearing aid
4 x Earplug (different sizes)
1 x Plug Charger (110-240v)
1 x User manual
- Adjust volume to the minimum before wearing.
- Choose an earplug of slightly bigger size to avoid whistler.
- Increase volume gradually to avoid sudden increase in sound.
- If you hear a howling, check the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage.
- Keep the ear plug clean，Remove the battery if you don’t use it for long time.