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doctor check a baby girl's ears. Little baby having hearing test , procedure impedance audiometry
Digital multimeter with wire probes instrument for measuring voltage on white background.
A black colour waterproof water resistant Printed Circuit Board with CPU, SMD & IC mounted part on board
Woman having ear exam. Tympanometry measures the pressure in the middle ear. Impedance audiometry.
Black multimeter with black and red probes over white background

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