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Welch Allyn Pocket Otoscope is an instrument designed for visual examination of the eardrum and passage of the outer drum. It is a small, easy-to-use and convenient tool with a halogen bright-white light having a built-in throat illuminator. Welch Allyn 22821 is a small handy pocket otoscope. It comprises of an AA battery handle. It emits halogen light for accurate inspection of the tissue color. It can provide a long-lasting and consistent illumination. Welch Allyn 22821 Pocket Otoscope is a user-friendly device. It is simple to use! One can detach the head of the otoscope and simply use the throat
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