New and upgraded digital hearing aids. 1 x Hearing aids. Sound Gain: 38±5dB. 1 x USB line. Easy To Use: Easy to Operate For Seniors. Battery: Lithium battery. Adjustable Amplify Mode: 6 Different Amplify Frequency Adjustable.
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The reason for the howling/noise: To make a mini hearing aid, the internal amplifier and microphone are very close together. The sound is constantly receiving and expanding, so there is a certain possibility of whistling after the power is switched on.
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Making them both stylish and practical.
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|- [Comfortable] 360 degrees rotating connecting tube and ergonomic BTE design fit your ears. TPE silicone soft ear tubes help you enjoy hearing aids. The upgraded version of the invisible ear line design can be easily worn.
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Our accessories include earplugs of different sizes. This small device allows you to wear comfortably and provide a clear sound. 1 Hearing Amplifier. Total acoustic gain: F = 1600Hz, 45±5dB. Maximum saturation sound pressure level (SSPL): 130dB±4dB.
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Features:-There are five levels of volume control with beep prompts.-Equipped with portable charging case, 3-4 hours to full power of the case, can offer totally 36-90 hours of use. -The operation is simple, long press to turn on and short press to adjust the volume, making it convenient for the elderly to use.-High-definition sound quality enables barrier-free communication, and the full-scale gain is greater than 35dB.-The cochlear ergonomic design is comfortable to wear and can be used for a long time.Specification:Material: ABS+siliconeMAX OSPL90 (dB SPL): ≤115dB+3dBHFA OSPL90 (dB SPL): 110dB±4dBFOG：30dB±3dBHFA FOG：29dB±3dBFrequency range: F1<400Hz, F2>4700HzTHD 500Hz：≤5+3%THD 800Hz: ≤5+3%THD 1600Hz: ≤5+.
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Mode: hearing aid mode; Bluetooth headset mode. Two hearing aid modes can be used, Bluetooth mode only supports single ear mode, and two do not support pairing;. Function: auxiliary listening; bluetooth headset.
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Digital Hearing Aids Invisible 32 Channels Sound Amplifier Noise Cancelling GIFT. 64-Channels Sound Amplifier Digital Hearing Aids Invisible Noise Cancelling Gift. Digital Hearing Aids Sound Amplifier Invisible Noise Cancelling 32-Channels (UK).
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