10 Channels Bluetooth Digital Hearing Aids Smart Sound Amplifiers, Programmable Wireless App Sound Assist Aid, for Adults and Seniors

SF101 is programmable BTE open ear hearing aid. Based on DSP systems, 10 channels WDRC and digital signal processing, SF101 can provide your hearing clear and comfortable. No matter you are in quite, noisy, outdoor , it will keep you listen clearly.

Material : ABS Plastic+Silicone
Size: 1.4* 0.27 in
Weight: 2 g
Battery: 312
Color: Champagne
Fitting range:
Certificate: FDA, CE
Package( for one ear)
1 x Hearing Amplifier
9 x Different size Ear Domes
2 x Batteries
1 x Shockpoof Case
1 x User Manual
Package provide Detailed wearing process, and possible problems and corresponding solutions.
How to reduce feedback for this hearing amplifier?
1. Ensure the Ear Dome fits snugly in your ear canal, if it is too loose, replace with a larger ear dome.
2. Please make sure the pulling line is below, and the volume button/dial is above when you wearing it.
3. Turning down volume.
Note:
--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.

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