A sample pack contains two non-working Eargo devices to let you experience our comfort and near invisibility. Why do we send these?An important part of figuring out whether a hearing aid is right for you is experiencing how the device feels, and how it looks, when worn. Our sample packs allows you to experience this, on your time. The sample pack contains a regular and a large sized Eargo. Try them both out to see which is more comfortable.Give our helpful Personal Hearing Guides a call at 1-800-349-0901 for any questions you have about whether Eargo is right for you.