Easiest and most effective hearing aid dehumidifier. Prolongs the life of hearing aids and improves sound quality while reducing the need for costly repairs. Simply place the hearing aids into the Dri-Eze Dehumidifier before going to bed and close the lid. The innovative desiccant lining will remove moisture for 6 months from first use. Never worry about recharging or reactivating the desiccant lining.