Rechargeable Small In Ear Portable Invisible Hearing Aids Adjustable Tone Sound Amplifier 1 Pair Recharge In Case Description: The product looks like a Bluetooth headset, which can protect your privacy. You don't have to worry about discrimination anymore.Better use experience than ordinary hearing aids Unique appearance.Easy to learn, one-key operation .Use one hand to complete the operation, turn on/off/adjust the volume. Convenient for watching movie, enjoying the drama, attending meeting,and having class, it could help you hear the sound clearly and loudly. .