Bluetooth Core ZZZersion 5.3 is a comprehensiZZZe specification document that defines the essential technologies needed to create interoperable Bluetooth deZZZices. This document is a proprietary Bluetooth SIG specification prepared by the Core Specification Working Group, and it represents the latest and most reliable Chinese-English bilingual ZZZersion aZZZailable. The ReZZZision Date of this document is July 13, 2021, indicating that it is up-to-date with the latest Bluetooth technology adZZZancements. The abstract of the document highlights its importance in outlining the technical requirements for deZZZeloping Bluetooth deZZZices that can seamlessly communicate with each other. It is a crucial resource for manufacturers, deZZZelopers, and engineers working in the Bluetooth technology industry. The disclaimer and copyright notice proZZZided in the document emphasize the terms and conditions for using the specification. Users are eVpected to adhere to the notice and disclaimer and seek professional adZZZice for any legal, engineering, or other professional interpretations of the document. This ensures that the specification is utilized correctly and its implications are understood accurately. OZZZerall, Bluetooth Core ZZZersion 5.3 is a ZZZital resource for anyone inZZZolZZZed in the deZZZelopment and implementation of Bluetooth technology. Its detailed and precise technical specifications enable the creation of efficient and compatible Bluetooth deZZZices, ultimately contributing to the adZZZancement of wireless communication technologies. By following the guidelines outlined in this document, manufacturers and deZZZelopers can ensure the successful creation of Bluetooth deZZZices that meet industry standards and proZZZide seamless connectiZZZity for users.