hearing aid description :
Aurora-413A
1) 4 fully digital computer programmable channels
2)Fully Automatic Wide Dynamic Range Compression (WDRC)
3)Independent adjustment for soft/loud sound
4)Speedy processing, high-fidelity output
5)Instantaneous feedback cancellation
6)Two independent memories
7)Ultra-low equivalent input noise (EIN)
8)Open DSP platform and optimum target gain display
9)Memory change and low battery indicator
10)Selectable crossover frequency
11)Maximum Power Output (MPO) control
12)High power matrix for mild to profound hearing losses
13)Telecom-easy technology for phone compatibility