This document is a declaration letter from Shenzhen Hanyin Technology Development Co., Ltd. to the Federal Communications Commission (FCC) regarding their True Wireless Earphones, model Vogbuds 5Pro. The letter states that the PCB board, circuit, structure, and internal components of the left and right earphones are the same, with the only difference being the location of the components. The document includes the company's address, contact information, and the FCC ID for the device. It also includes photos of the left and right earphones' internal components to support the declaration. The purpose of this letter is to comply with FCC regulations and provide necessary information for the certification process of the Vogbuds 5Pro True Wireless Earphones.