# What’s the change address Bitcoin's wallet is built on the Hierarchical Deterministic framework, which supports generating different addresses and managing addresses. The change address is also a subaddress generated by the mnemonic and the specific path, which is essentially a subaddress. Using subaddresses can provide users with better anonymity and privacy. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.tpwallet.io/en/wallet-faq-en/btc-wallet/change-address.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.