BSERA (Brain Stem Evoked Response Audiometry) and EchoG (Electro Cochleography}. Any clinician concerned with sensory and neural functions requires objective diagnostic information. Often such information is difficult and sometimes impossible to obtain either due to nature of the problem or the ability of the patient to co-operate. In such cases electro physiological evaluation becomes a very important tool which can be used to obtain reliable, non-invasive and objective information to assists in proper diagnosis of the disease either alone or in compliment with other tests. We are proud to say that we have a magnificent, dual channel, multiple function tool in Inter acoustic EP 25, which has an array of functions Viz; ABR, MLR, LlR, P300, MMN, EchoG and Beraphone (screening device for infants and children).