00388nam a22000857a 4500245008000000260005800080300000900138505013800147650001700285 aIS 16127:2013-Behind the Ear (BTE) Hearing Aids- Digital-Specification aNew Delhi :bBureau of Indian Standards (BIS),c2013. a7 p. aDescribes the general and performance requirements of the BTE hearing aids - digital, which connects to the ear by means of an ear.  aHearing aids