The document describes a product called TZS-801ZCD8S7 and TZS-801ZCD8HS7. These products have 8 digital parameters, namely 8, 7, 6, 5, 4, 3, 2, and 1. In addition, these products also have AU-IN functionality and can operate in modes 2, 1, 8, 7, 6, 5, 4, 3, and 2, 1.
