Product: (Pack of 2) Digital Cycle Rechargeable Hearing Aid Amplifiers with 4 Programs -Noise Reduction Volume Control for Either Ear Skin Color Mini Invisible
Brand: XMACH
Color: Beige3
Please check the size of the ear dome and ear plug and find the best fit for your ear canal. 
 You want a snug fit with no air gaps.
 These gaps will lead to those whistling sounds
Specification for CIC Amplifier :
 Sound output: 118 dB
 Peak gain: 45 dB
 EQ Input noise: 26 dB
 Total harmonic distortion: ≤5%
 Sound Frequency range: 300-3800Hz
 Peak OSPL 90 ( dB SPL)115dB
 HFA OSPL 90 ( dB SPL)110dB
 HFA/FOG Gain ( dB )30dB
 CIC hearing aid parameters
 Material:Resin
 Size: 1.8*1.2cm
 weight:2.4 Gram
 battery life:80hours
 eath one can fit for Right Ear and Left Ear
 Product instructions:
 Package including
 2 x Hearing CIC Amplifier
 10 x Different size Ear Domes
 2 x Cleaning Tools Brush
 1 x Manuel
 2 x Case
 Features:
 1. both hearing aid is easy to operate : CIC Invisible hearing aid :Turn on automatically after installing the battery
 2. Those hearing amplifier has four different modes; high, low, medium, and wide to meet different occasions. Tips
 1. Why is there noise or a whistle, how to solve it?
 Because the personal hearing amplifier device can't be in contact with the air, if there are earplugs not tight with ear canal with cause whistle
 Please choose the right size of the earplugs and put it tightly in the ear canal

The digital hearing aid is easy to hide(SKIN COLOR) , digital noise cancellation function, suitable for adults and elderly, children, left and right ear comfortable wearing, low power consumption, big energy stored Battery which can working for 80 hours.(Rechargeable battery )
Smart Chip Noise reduction Amplify the desired sound Multi-frequency adjustment: according to different frequencies in different scenarios , Intelligent automatically adapts to the surrounding environment, automatically constant normal sound level of 55 decibels, will not produce harsh sounds due to sudden noise.
4 Channels Noise Reduction with Large range volume control: make it easy to capture the sound you want to hear, even in noisy environments such as theaters, churches, conferences, restaurants and similar environments.Volume control makes suitable for varoius environment.
Made of healthy Resin. Sweat-proof, shock-proof, drop-resistant, comfortable to wear: professional-grade soft silicone ear hooks with humanized arc design. fits left and right ears, five different size earplugs are available for all people.
Please check the size of the ear dome and ear plug and find the best fit for your ear and ear canal. You want a snug fit with no air gaps. These gaps will lead to those whistling sounds.

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