Digital fashionable Open Fit Hearing Aids sound amplifier
- Model Number:JH-D31
- OSPL 90 MAX：≤114+3DB
- AVERAGE GAIN：30±5DB
- TOTAL HARMONIC DISTORTION：≤2±3%
- FREQUENCY RANGE：450-5000HZ
- EQ INPUT NOISE：≤32DB
- WORKING CURRENT：≤8MA
- BATTERY SIZE：A10
- Hearing Progtram：Normal, Conference , Noise Reduction, Outdoor Hearing Program
JH-D31 is a new, stylish series of Open-Fit hearing aids. It is for people with mild hearing loss who also have an aesthetic request. To be part of your graceful life, JingHao devotes itself to being more excellent! Everything is for your simple happiness.JH-D31 Digital Hearing Amplifier for Adults and Seniors,Easy Operation BTE Hearing Aid to Enhance Hearing with Noise Reduction,FDA Approved Hearing Device Recommended by Audiologist.
|OSPL 90 MAX||≤114+3DB|
|TOTAL HARMONIC DISTORTION||≤2±3%|
|EQ INPUT NOISE||≤32DB|
|Hearing Progtram||Normal, Conference , Noise Reduction, Outdoor Hearing Program|
|Approved||ISO 9001, ISO19485, FDA, CE, RoHS, Freesales|
- EASY USE AND COMFORTABLE FEATURE: JingHao is a professional hearing amplifier manufacturer and seller, which have produced a variety of hearing amplifiers. Our hearing amplifiers designed by audiologist are easy, durable, and comfortable to wear in either of the ears.
- RECHARGABLE FEATURE: Our hearing amplifier runs with high quality lithium battery, which saves your trouble to buy button batteries frequently. It can be used for 20-24 hours after charging 2 hours. It can be charged via USB cable, you are able to charge anytime and anywhere you want.
- FULLY UPGRADE: 4channels signal processing, with 4 independent compression-amplification channels, the received sound is divided into different, frequency regions for separate analysis, processing and recurring, speech noise synchronization detection optimization adaptive, layered noise reduction to reduce background noise, acoustic feedback cancellation.
- GIFT DESIGN: Our rechargeable hearing amplifiers are offered with exquisite packaging and complete accessories.Our hearing amplifiers will be great gifts for your friends or families.
Q:Why there are some background noise?
A:Hearing amplifiers are electronic devices, which have a quiet but occasionally noticeable sound. Sometimes, it can be a distracting noise.Actually, it is the electric current sound existing in all good machines.Generally, the higher the power, the greater the static sound.
Q:What causes the feedback?
A:If the ear dome is not inserted well into ear canal or air leaks at the ear dome edges, when the device is close to hand or wall, a certain amount of sound will go back into the microphone.The sound is re-amplified which causes that annoying whistle.
Q: Are you trading company or manufacturer ?
A: We are manufacturer. 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%.