BTE Hearing Aid | Hearing Aid Manufacturers MSLF-138 Specifications:
- BTE Hearing aid
- Max Sound Output: 129dB ± 4dB
- Max Sound Gain: 50dB ± 5dB
- Harmonic Wave Distortion: ≤5%
- Frequency Range: 450~3500 hz
- Input Noise: ≤30 dB
- Battery: AG13 button battery (included)
- Working Voltage: 1.5 V
- Working Current: ≤4mA
- Color: As the picture shows
- Item Size: 6.75 x 4.35 x 1.9cm
- Package Size: 10 x 8 x 3.5cm
- Net Weight: 7g
1 x Hearing aid
3 x Earplug (different sizes)
2 x AG13 button cell battery
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.