| Technical Data | K18 S |
| Peak OSPL 90 ( dB SPL) | 133 |
| HAF OSPL 90 ( dB SPL) | 126 |
| Peak Gain(dB) | 60 |
| HAF Ful on Gain (dB) | 52 |
| 500Hz(%) | 4.0 |
| 800Hz(%) | 3.0 |
| 1600Hz (%) | 2.0 |
| EQ Input Noise (dB) | 32 |
| Battery size | 13A |
| 1. After Sales Service 24*7
2. Bad products Repair Service 3. Multi-National Team Work 4. International Assist to Develop New products 5. OEM/ ODM Service 6. Sometimes FREE Sample OFFER & SMALL order welcomed 7. Payment by PAYPAL 8. Quality Assurance CONTRACT 9. Confidentiality Agreement "Business Secret CONTRACT" |
Start your OTC hearing aid business with us!
Retone is a fast-growing OEM/ODM hearing aid manufacturer, who has high-level product expertise on OTC hearing products for years.
Over 80% products and production in Retone are Buy-and-go hearing products.
Every year over 4 styles OTC hearing products are launched or upgraded base on market and customers’ request.
Over 45% customers come from the pharmacy, optical shop and emerging market.
Not the top OEM/ODM maker, but our superiority is flexibility.
Q: Are you trading company or manufacturer ?
A: We are manufacture. We have our own research and development teams and factory.
Q: How about your delivery time?
A: Generally, it will take 5 to 15 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q: How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.
Q: How to deal with the faulty?
A: Our products are produced in strict quality control system and the defective rate will be less than 0.2%.
For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.
