*Medium power suitable for moderate to severe hearing weak people.
*Stable quality,simple operation,easy to use
*Low distortion,low noise
Free shipping 2pcs lot ear device as seen on tv hot sale S-22 sound professional power amplifier
1.)The wire plug connected to the headset.Then earplug connector(hard) to the headset,
earbuds (silica gel) to connect to the headphone connector pedestal
2.)The battery installation: Gently open the battery compartment cover, put a battery
into the battery compartment in the right direction, then close the battery compartment .
3.)Before you use this item ,you have to turn the ON OFF switch to Off,and turn the sound
volume to minimum.
4.)Then put this item on you ear, keep it tightly
5.)Next, turn this item ON, adjust the volume until you hear clear sound
1.)Adjust volume to the minimum before wearing.
2.)Choose an earplug of slightly bigger size to avoid whistler.
3.)Increase volume gradually to avoid sudden increase in sound.
4.)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.
5.)Please regularly clean the ear plugs in order to ensure the normal use of hearing aids.
6.)Use for long periods of time, please remove the batteries to prevent battery rot erosion
hearing aid components.