A story of a 80 years old heairng loss people

When my grandfather 80 years old, he has was seriously damaged of hearing. My father bough him a hearing aid, but after my grandfather does’t like to use it and also very hard to hear the sound. When I tried my grandfather’s hearing aids, I found out that there were several problems: 1) The background […]

Jinghao’s first Bluetooth new hearing aid W2

Jinghao’s first Bluetooth new hearing aid W2 is now available for sale. With wireless Bluetooth technology, it can easily turn a hearing aid into a wireless Bluetooth headset for a variety of smart phones or various electronic devices, thus breaking the boundaries of sound transmission. Not only that, the Jinghao W2 hearing aids are equipped […]

A Love from eyeglasses case

One day at the bar, a beautiful girl sat in front of me. At first I was very interested in this beautiful girl. Later, the girl took off her sunglasses and took out a hard eyeglasses case from her bag. I was so amazing about that case as remenber. What kind of case which can […]


The electric vehicle inverter is used to control the main motor of the automobile to provide power for the operation of the automobile. The IGBT power module is the core power device of the electric vehicle inverter, and the driving circuit is the key circuit for exerting the performance of the IGBT. The design of the drive circuit […]

JH-W2 Bluetooth Rechargeable Mini ITE Digital Hearing Aids for Phone Connecting

https://www.jhhearingaids.com/jh-w2-bluetooth-rechargeable-mini-ite-digital-hearing-aids-for-phone-connecting/ Description Paring to a phone and entertainment 1.Turn on your phone and ensure its Bluetooth function is activated. Search your Bluetooth devices on your phone by following the phone’s instructions. Refer to your phone’s user manual for more information. 2.After a few second the phone will list the device as a discover device “W2”. […]

JH-115 BTE Hearing Aids Assisted Listening Devices

JH-115 BTE Hearing Aids Assisted Listening Devices https://www.jhhearingaids.com/jh-115-bte-hearing-aids-assisted-listening-devices/ Specification Color Beige, OEM OSPL90 Max @ 1400Hz 130.7dB HFA Avg 121.9dB FOG50 Max @ 1400Hz 44.2dB HFA Avg 35.1dB Total Harmonic Wave Distortion <= 3% Reference Test Gain Target 35.2dB EQ Input Noise 29.8dB Response Limit (63.0dB) F1 < 200 F2 = 3954Hz Battery LR754 Battery […]

what is an application aid Mifare DESFire ev1

MIFARE DESFire EV1 can have multiple applications (28), and each application can have multiple files (32) of different types (4). The card itself has a PICC master key plus between 1 and 14 keys per application. The keys of each application are used to control access to its files. A Mifare DESFire EV1 card can […]

Mifare DESFire ev1 vs Mifare DESFire ev2

MIFARE DESFire EV1 vs EV2 The series of MIFARE 13.56 MHz proximity smart card Integrated Circuit (IC) chips that are widely used around the world for transit and other types of payments, general identification and physical access. MIFARE Classic 1k was introduced in the mid-1990s and continues to sell in very large quantities, but it was not designed with […]

Hearing Aids types

According to the National Institute on Deafness and Other Communication Disorders (NIDCD), about 36 million Americans experience hearing loss, and about 90 percent of them can be treated with hearing aids.  If you suspect you may have a hearing loss, our audiologists at NHHI will assess your needs and determine if hearing aids would be […]