1. National Entrance Phone Sub-Parent Unit VL-388G Electronic Chime 2. National Entrance Phone 2-Wire Sub-Unit VL-568G This is a set. Although it is a new, unused item, the operation has not been confirmed. There are stains and dirt on the outer box due to storage. The main body appears to be in a clean condition. I am selling this item as I am decluttering. Thank you.