Self-fitting Bluetooth hearing check rechargeable BTE digital hearing aid with wireless which are similar to hearing assist

Item No.: 4
Customized logo (Min. Order: 300 Pairs)
Customized packaging (Min. Order: 500 Pairs)
Graphic customization (Min. Order: 500 Pairs) Less
Samples: CN¥1


 1. 100% Digital Processing

 2. Open-fit design
 3. 4 channels WDRC amplifer
 4. Dual microphone
 5. Self-fitting Bluetooth function
 6. Hearing check on the App
 7. Used NiMH 13A rechargeable battery
 8. Base charging way
 9. Full Charging time: 6H
 10. Duration of use: 18H
 11. OEM brand is available

Technical Data
 Technical Data  Bro 402RB-SF
 Peak OSPL 90 ( dB SPL)  120
 HAF  OSPL 90 ( dB SPL)  110
 Peak  Gain(dB)  50
 HAF Ful on Gain (dB)  45
 Frequency Range (Hz)  500-5500
 500Hz(%)  3
 800Hz(%)  3
 1600Hz (%)  3
 EQ Input Noise  (dB)  30
 Battery size   NiMH

Company Information


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.



Q: Are you trading company or manufacturer ?
A: We are manufacturer. We are a company integrating production and R&D.


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.


Q: About the rechargeable hearing aid, Why do you used the NiMH battery, don't used the Lithium ion battery? 

A: We have done a large number of market research, we learned that the lithium is not very stable and lithium battery is prone to safety accidents. NiMH rechargeable battery will be more safe and Environmentally friendly. Besides, NiMH battery can support longer duration of use about 25H. So that is why we choose the NiMH battery. 


Q: About the Protable case, Does it have a power storage function?

A: Yes, it has, the protable case we used the lithium rechargeable way, it can provide power storage function, just like a power bank. 


Q: About the Protable case, Does it have a drying function? 

A: Yes, it has drying function. Just like the phonak drying design. 


Q: Can you provide OEM brand service? 

A: OEM and ODM is available, usually our OEM moq is from 200pairs, because the customized packaging require us that QTY, but if you can accept the packages in stocks way, you can also do OEM from 200pairs MOQ. 

Over 45% customers come from the pharmacy, optical shop and emerging market.


Not the top OEM/ODM maker, but our superiority is flexibility.