AXON Ear Hearing Aid Sound Enhancer Assistance V-183
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.
Bluetooth Design hearing aid
Max Sound Output: 129dB ± 4dB
Max Sound Gain: 55dB ± 5dB
Harmonic Wave Distortion: ≤5%
Frequency Range: 250~3800 hz
Input Noise: ≤30 dB
Battery: AG13 button cell battery x 2
Working Voltage: dc1.5V
Working Current: ≤4mA
Color: As the picture shows.
Item Size: 6.75 x 4.35 x 1.9cm
Package Size: 9.6 x 8.2 x 3.4cm
Net Weight: 10g