Hearing aid "HA-98" series have features as follows:
HA-98 series are with import parts and modern technology. They have attactive design, appearance with small size. And they are light, less noisy, also have fine fidelity and tone. Customers may have three choices of tone adjustment. These products are ideal hearing aids for the deaf, either of slight or middle degree.
Technical Specifications:
MODEL ITEM IDEX
HA-9811 Peak Gain ≥ 50 dB
HA-9812 Peak Gain ≥ 45 dB
HA-9813 Peak Gain ≥ 56 dB
HA-9811/9812/9813 Max Output ≤ 135 dB
Total harmonic wave distortion ≤ 10%
Equivalent Input Noise Level ≤ 32dB
Frequency Range: 400~3500Hz
Battery/Voltage/Current: AAA/1.5V/6.8mA
Volume: 6.3*4.2*1.4cm
Weight: ≤ 25g(exclude battery)
Direction: All directions
Environment temperature: 5'C~40'C
Relative Humidity: ≤ 80%
Atmospheric Pressure: 86kPa~106kPa
AST Hearing (AST Hearing Science and Technology) has been devoting itself to the hearing improvement of the hearing impaired through Science and Technology. Business covers hearing aid, listening device and medical equipment in connection with Otology. AST (Germany), AST (Turkey), AST (China), AST (Singapore), AST (Hong Kong)^^AST has been providing customers with considerate services and high quality products worldwide.
AST obtained the certificates such as ISO9001, ISO13485, CE and FDA. Every link like R & D, manufacture, sales and service embodies the profession, intelligence and responsibility of AST team. In high-end market of Europe and USA, with approval of more and more audiologists, the sales grow exponentially. In Middle East, taking advantage of the reliable quality and clear sound, AST sets a good public praise and gets a stable market share. In 2003, AST entered the Chinese market and soon found favor with the hearing impaired. Sales volume of AST hearing aids ranks among the top brands in a short period of 5 years.
With the continuous market success, AST actively participates in Charity and makes a contribution to society in line with its social responsibility. AST (China) donated in Yushu disaster area and Wenchuan Earthquake disaster area, ect. The contribution of AST to society is also the honor of the entire AST team. Social responsibility has become the main Corporate Culture of AST.
