This document provides a difference description for a range of Bluetooth headset models manufactured by Shenzhen Haihongxin Technology Co., LTD. The core statement asserts that all listed models are electrically identical. This means they share the same software parameters and hardware design, encompassing circuit design, PCB layout, RF module/circuit, antenna type and location, and components on the PCB.
Furthermore, the mechanical structure and design, including product enclosure and materials, are also consistent across all models. The sole differentiating factor among these Bluetooth headsets is their model name. This declaration simplifies compliance and certification processes by highlighting the fundamental similarity of the products, focusing attention on the model name as the primary identifier for each variant.
The document is signed by Pan Yanhong, Business Manager, and dated May 26, 2025. Contact information for Shenzhen Haihongxin Technology Co., LTD, including address, telephone, fax, and email, is provided for further inquiries.