Pocket Hearing Aid | Hearing Devices MSLF-28 Specifications:
- Pocket Hearing aid
- Max Sound Output: 129±4 dB
- Max Sound Gain: 60dB ± 5dB
- Harmonic Wave Distortion: ≤5%
- Frequency Range: 250~3800 hz
- Input Noise: ≤30 dB
- Battery: 1 x AA battery (included)
- Working Voltage: dc1.5V
- Working Current: ≤4mA
- Color: As the picture shows
- Item Size: 6.75 x 4.35 x 1.9cm
- Package Size: 12 x 8.5 x 3.3cm
- Net Weight: 29g
Pocket Hearing Aid | Hearing Devices MSLF-28 Package included:
- 1 x Hearing aid
- 4 x Earplug (different sizes)
- 1 x AA battery
- 1 x Screwdriver
- 1 x Box
- 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.