The ReSound Dry-Aid Jar Hearing Aid Dehumidifier is a hearing aid dehumidifier that helps clean your hearing aids by keeping them in the dehumidifier overnight. After using them for a full day, your hearing aids can accumulate many different kinds of sensitive material that overtime without cleaning them, can ruin your very expensive hearing aids. The microwaveable desiccant that is included with your ReSound Dry-Aid Jar helps absorb the sensitive material and ensures the longevity of your hearing aids. The desiccant is able to easily reactivate for each time you use it. The ReSound Dry-Aid Jar is a light and portable plastic jar with screw on lid that measures approximately 2½" H and 3½" W. With its size and weight, the ReSound Dry-Aid Jar is travel friendly and can assist you with cleaning your hearing aids as you are on the go! The depth of the ReSound Dry-Aid Jar space with desiccant is 1½" deep and large enough for two traditional BTEs.