Doosl Hearing Aid for Seniors, Noise Cancelling In-Ear Digital Hearing Aids for Adults and Seniors, Enhances Speech and Audio Sound Amplifier, Both Ears camera car battery voltage

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and 100% safe for humans and pets

Sound gain: >=40 dB+/- 5 dB

1 x Desktop heater

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Doosl Hearing Aid for Seniors, Noise Cancelling In-Ear Digital Hearing Aids for Adults and Seniors, Enhances Speech and Audio Sound Amplifier, Both Ears camera car battery voltageDouble 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 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 environments. Ideal for indoor, outdoor, or public spaces. Adopted 4 channel hierarchical noise