Instructional video
If you have any questions about product operation, you can refer to the following video.

SmartU hearing aids video user guide

SmartU Hearing Aids Register & Login Retonefit App

SmartU Hearing Aids Connect to Retonefit App

Adjust SmartU Hearing Aids Based on Hearing Needs

SmartU Clean the Ear Dome

SmartU Replace the Ear Dome

SmartU Replace the Wax Guard

K23 hearing aids video user guide

K23 Hearing Aids Connect to RetoneFit App

K23 Hearing Aids Charging LED Display

K23 Hearing Aids Installing the Cerumen Cap

K23 Hearing Aids Install the Ear Dome

K23 Hearing Aids Remove Cerumen Cap

K23 Hearing Aids Clean Ear Dome

K23 Hearing Aids How to Wear Hearing Aids

K23 Hearing Aids Packaging Display

K23 Hearing Aids User Guide

SmartR hearing aids video user guide

SmartR Hearing Aids Accessories Display

SmartR clean the ear dome

SmartR volume and programs adjustable

SmartR replace the ear dome

SmartR replace the wax guard

SmartR hearing aids charging

SmartR Hearing Aids User Guide

V03B hearing aids video user guide

V03B Hearing Aids Connect to CONTROL HA App

Volume adjust by button

Clean hearing aid ear dome

Installing hearing aid ear dome

Installing the hearing aid sound tube

Removing hearing aid ear dome

Installing the wax guard

Installing the battery

Unpacking

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