Doosl Hearing Amplifiers for Ears, Howling Cancelling, Intelligent Noise Reduction, Rechargeable Bluetooth Personal Sound Amplifiers to Assist Hearing of Seniors, 1 Pair, White Pillow Power input: DC5V1A

Power input: DC5V1A

This dental teeth cleaner built-in 2000mAh rechargeable lithium battery can be used for about 40 days once fully charged (if use once a day and 2 minutes each time)

TMJ and tension headache relief

1 x Sound speaker

hunching and slumping by correcting your posture

Doosl Hearing Amplifiers for Ears, Howling Cancelling, Intelligent Noise Reduction, Rechargeable Bluetooth Personal Sound Amplifiers to Assist Hearing of Seniors, 1 Pair, White Pillow Power input: DC5V1ADoosl rechargeable Hearing Amplifiers for seniors with the Latest Bluetooth 5. 0 Fast and stable. Double Noise Reduction Function Use the latest generation of American digital chips to make double noise reduction than the usual sound amplifiers. No radiation and harm to human ears. Bluetooth's design lets you listen to music and receive the phones with ease. Adjustable Modes 3 adjustable programs and 4 volume levels to satisfy your needs in different