This design improves mild to moderate hearing loss in adults.Laica hearing amplifier with adapter features:Frequency range 1258000 Hz Low harmonic distortion (<5%) Low noise (<32 dB) 2 mods for indoor and outdoor Long battery life (working current 1.8mA) Rechargeable, with USB connect Suitable for mild hearing loss.Benefits :• It strengthens the sound.• Equipped with an on and off button.• A simple device to amplify and clarify sound for the elderly and the hearing impaired.Advanced technology improves sounds like you've never heard them before.• Suitable for all age groups, including the elderly who suffer from hearing loss.• Also suitable when watching movies or when checking when listening to something.• On and off button.High sound clarity even from a distance of 15 metres.• Rechargeable, with USB connect.

Used as directed.

• Hearing aid
• Improving hearing