SAP 170 VI BTE - 1 ENVIRONMENTAL PROGRAM, STABILIZER-IISDA WITH CONTROL ,SPECTRA SNR , DATALOGGING, IN-SITU AUDIOMETRY ,EASY -ON,NANO COATING,DAI, 4 CHANNEL, FULL GAIN ON 69, FITTING RANGE UPTO 10-80/110, BATTERY SIZE 13, FOR MODERATE TO PROFOUND HEARING LOSS.