USB Rechargeable Hearing Aid Sound Amplifier Portable Super Ear

1. Long standby time
2. Safe charging
3. Digital chip
4. Intelligent noise reduction
5 Anti-howling

Specification:

MaxSound Output: 130±5 dB
MaxSound Gain: 55±5 dB
Harmonic Wave Distortion:≤10％(1000Hz)
FrequencyRange: 300-4500 Hz
Input Noise:≤30 dB
Working Voltage: dc1.5V
Working Current:≤3mA
Color: As the picture shows
Item Size: 3.8 x 2.1 x 0.9 x 3cm
Package Size: 19 x 8.2 x 2cm
Net Weight: 9g

Package included

1 x Hearing aid
3 x Earplug (different sizes)
1 x User manual
1 x Box ( optional )
(Due to aviation restrictions, batteries are not included)

Note:

1. Adjust volume to the minimum before wearing.
2. Choose an earplug of a slightly bigger size to avoid whistler.
3. Increase volume gradually to avoid a sudden increase in sound.
4. If you hear a howling, check the ear (silica gel) is appropriate and whether the size of the plug is tight, the appropriate choice of earplugs and plugged, and make sure no air leakage.
5. Keep the ear plug clean
6. Remove the battery if you don't use it for a long time.