# Requirements * Microphone: Microphone that offers stable frequency response in 17kHz-20kHz. * Speaker: Smart Phone speaker * Processor requirement: Clock required on UART for SmartMic IA61x. * Host-board supported: [SAMD21](https://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-42220-SAMD21-Xplained-Pro_User-Guide.pdf) * Host library memory requirements: \~10kB * Size of SDK on disk: 2kB * Licensing: Python3 is required. * Sender platforms supported: Android, iOS * Host-board: For a host platform to be supported, the host must have non-volatile memory to provision license. The device Id for host platforms must be obtainable. *Please note: Licensing for Knowles SMartMic IA61x, currently only tested and functional in Windows.* --- # 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://trillbit.gitbook.io/trillbit-sdk/knowles-smartmic-support/trill-sdk-for-knowles/requirements.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.