This is a hand-held Doppler unit , and it ’s designed to let you heed to the pedigree induce around inside your head . Why would you require to do that ? Well , discover how regular the bloodflow in your head is is how one detects a concussion , so having this on the sidelines of a football game field or in a medics face pack on a battlefield would obviously be very helpful . Also , it ’ll entirely blow your lapidator acquaintance ’ minds . Whoa , dude , that ’s what the inside of my head sounds like !
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