Hearing Sound Amplifier V-99 Pocket Hearing Audi

Description:

Increase volume gradually to avoid sudden increase in sound, adjust volume to the minimum before wearing.
Choose an earplug of slightly bigger size to avoid whistler.
If you hear a howling, check the ear (silica ) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage.
Need Battery: AG10 Button battery (Without Battery)

Specification:

Material: ABS Plastic+Silicone
Size: 61x41x16mm

Package Includes:

1Piece V-99 Hearing
4Piece Earplug (different sizes)
1Piece Carrying Bag
1Piece User manual

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