Product: Universal model Hearing Aid, Rechargeable Sound Amplifier, Sound Amplifying Headphones, Help People with Hearing impairments, Suitable for All People
Brand: Great-Ears
★The main features of the product:  1.This is a Universal hearing aid  2.Max sound Output: 125dB ± 4dB   3.Sound Gain: ≥30dB  4.Harmonic Wave Distortion: ≤10%   5.Frequency Range: 450~4000 Hz   6.Equivalent Input Noise: ≤30 dB   7.Adjustable volume knob  8.Battery: Built-in High quality Lithium battery .  9. Rechargeable battery duration max.30 hours，Short Full charging time 4 hours (First charging up to 6 hours)   10.The rechargeable battery cycle time up to 500 times without decline   11.Working Voltage: D.C.3.7V   12.1 Year warranty  ★How to wear:  1. Select the earplugs of the appropriate size and connect them to the headset connector.   2. When wearing, slowly insert the headset head into the ear canal, so that the earplugs and ears are fully fitted. This can avoid noise caused by leakage.   3. When using the volume from low to high, to avoid sudden excessive volume caused by hearing discomfort.   ★Note:  1. When cleaning the hearing aid, please use a dry cloth and a small brush to clean the hearing&nbs
★ This is a Universal model hearing aid, you can use it to listen to amplified sound from the outside, it can hide in your ears perfectly, and the sound becomes more and more clear.Mini Hearing Aid, Rechargeable Sound Amplifier, Sound Amplifying Headphones, Help People with Hearing impairments, Suitable for All People

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