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 … Continue reading Welch Allyn 22821 Pocketscope Otoscope Review