Tips for buyers:
The cause of howling/noise: To make a small size hearing aid, the internal amplifier and the microphone are close to each other. The sound is continuously received and extended, so it has a certain possibility of producing howling after power-on. At present, small hearing aids and high-power hearing aids on the market can hardly prevent howling, and only full-digital hearing aids can prevent howling.
Ways to avoid howling/noise:
1. When the power is high (the amplified sound is large), howling is more likely to occur. Therefore, gradually increasing the volume of layer can effectively prevent howling.
2. When the ear canal is completely closed, there is no howling sound. So, please use hearing aids after cleaning your ear canal, and test the ear tips from largest to smallest to find the most suitable ear tips.
3. After the hearing aid enters the ear canal, it is recommended to push the hearing aid with your fingers and hold it for 1-2 seconds, and then release it completely from the earplug.
In addition: If you don't know how to use it or there is a problem with your hearing aid, please don't rush to leave a negative review and contact us. Thank you.
Description
Hearing aids can effectively reduce noise and amplify sound. Our accessories include earplugs of different sizes. You can choose according to your ear size. This small device allows you to wear comfortably and provide a clear sound.Specifications
Product name: Hearing Aid
Power mode: rechargeable
Maximum saturation sound pressure level (SSPL): 130dB±4dB
Total acoustic gain: F = 1600Hz, 45±5dB
Total harmonic distortion (THD): F > 1000H 15% F < 1000H 10%
Frequency response: 450-3500Hz
Equivalent input noise: 32 dB
Battery: rechargeable
Battery current consumption: 4 mA
Estimated battery life: 48 hours
Rated voltage: DC 1.5V
Packing list:
1 * Hearing Amplifier
1 * Cleaning brush
4 * Earplugs
1 * USB cable
1 * Instructions
All major credit cards are accepted through secure payment processor PayPal.
Payment must be received within 3 days of auction closing.
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Items are generally shipped out within next 1 business days after payment has been verified.
We assure you that we are a honest and super reliable seller on ebay, any problems can be solved in a satisfing way for you and any loss will not be brought to you as long as you will kindly contact us via ebay message or your private email. Please kindly contact us firstly if your purchasing is in trouble before leaving any bad feedback including neutral and negative feedback and leaving 3 stars or less stars to me on 4 criteria.
Return Policy
Please return the item within 30 days after receiving if you are not happy with your purchasing.All returns are expected to be in original conditions, please email us first for return address and instructions.
If you are not satisfied with your purchase in any way please give us an opportunity to try and make it right before leaving feedback.We will answer your questions within 1 working days.
Customer Service Hours: M-F: 9:00AM - 18:00PM BST (Beijing Standard Time)
We have been engaged for many years in the line of automobile Tools and our corporation is established for the purpose of trustworthiness.
WHAT WE HAVE?
We have office in Shenzhen,China and 5 warehouses that are located in AU/UK/US/DE and ShenZhen.We assure you not only good service but also to be ship as soon as possible.