Designed by renowned ear, nose and throat specialist Dr. Hamilton P. Collins II, this rechargeable ear dryer eliminates the moisture trapped in the outer ear canal, the medium that allows germs to grow freely and potentially lead to serious ear infections such as Otitis Externa (Swimmer's Ear). Ideal for swimmers, as well as those with regular ear infections, especially children, the handheld dryer delivers a gentle 80-second stream of warm air into the ear, eliminating moisture that can remain after water sports and daily bathing. The compact unit is convenient for travel, folding away into its own integrated carrying case, and the set includes four color-coded earpieces for use by multiple family members. Safe for use by those with in-ear tubes. The battery recharges in three hours, providing a charge that will last for 50 drying cycles. 2 1/4 W x 4 1/2 L x 4 D. (5 1/2 oz.).