Ear-type hearing aid, invisible wearing, weight only 3g.
Body material:Medical Plastic.Ear plugs material:medical soft silicone.
Adopt low-power circuit settings, the battery lasts longer, the sound quality fidelity, imported chips.
Adjust volume to the minimum before wearing.Increase volume gradually to avoid sudden increase in sound.
Two colors, red and blue. Ergonomic design,simulated ear canal settings, wearing long time with no pain.