描述
- 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.
- Package included:1 x V-168 Hearing aid，5 x Earplug (different sizes)，2 x AG13 button cell battery，1 x User manual
Max Sound Output: 130dB ± 5dBMax Sound Gain: 50dB ± 5dBHarmonic Wave Distortion: ≤5%Frequency Range: 300~4000 hzInput Noise: ≤30 dBBattery: AG13 Button 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: 8.5 x 5.5 x 3.5cm Net Weight: 7gNote:Keep the ear plug cleanRemove the battery if you don't use it for long time.
