This document is a declaration of conformity from Saida New Technology (Huizhou) Co., Ltd, concerning a range of wireless speaker models. The declaration is addressed to the Federal Communication Commission, specifically the Authorization and Evaluation Division.
The document states that the models listed, including D-221, D-222, D-201, D-206, D-207, D-208, D-209, D-220, D-236, D-238, D-239, SL-8018, Q1, Q2, Q3, Q5, Q6, Q7, Q8, and S-20, are electrically identical. This means that the schematic, PCB layout, structure, and software are the same across all models. The only difference between the models is the name, which is varied for marketing purposes.
The document includes the company's address in Huizhou City, Guangdong Province, China, and is signed by Mrs. Zhan, General Manager of Saida New Technology. Contact information such as phone, fax, and email are listed as N/A.