Pocket hearing aid ---" A-80"has features as follows:
Technical Specifications:
ITEM IDEX
Max Output 129dB± 4dB
Peak Gain ≥ 38dB
Total harmonic wave distortion if f< 1000Hz, ≤ 15%
If f>1000Hz, ≤ 10%
Equivalent Input Noise Level ≤ 30dB
Frequency Range: 450Hz~3500Hz
Environment temperature: -40'C~55'C
Relative Humidity: ≤ 95%
Atmospheric Pressure: 50kPa~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.
