Hearing Impaired Model E-Scope II with extra large headphones. Amplifies up to 120 dB SPL(soiund pressure level). Sounds are up to 30 x's greater then acoustic stethoscopes (non electronic, non amplified units). Easy to use; Controls: volume up, volume down, selector switch for heart and lung sounds. 2 minute timer for battery conservation. Accessory pack included-consists of 1 Pediatric Diaphragm,3 plastic bells (adult, pediatric, infant) + 2 additonal hard plastic mushroom style ear tips. Now includes ss adult specialist diaphragm. Carrying case included. Operators manual and instructional CD-Rom included. Please contact your audiologist to have your hearing aid(s) programmed for low frequencies (100hz to 1700hz). To order replacement extra large headphones order# 7180408. 1 year mfg warranty on parts and labor. Includes 1 AAA Battery.