You can use a compatible AES protocol active pen like this one: https://www.bestbuy.com/site/wacom-bamboo-ink-smart-stylus-for-windows-ink-2nd-generation-gray/6374981.p?skuId=6374981

The Lenovo IdeaPad S145-15 Laptop, model number 81N3009BUS, ships with a 300p webcam and microphone built in. Whether a specific APP will work with this model, will depend on the requirements and compatibility of the specific APP. We recommend you check with the specific software publisher's web site for their compatibility with Windows 10 S-Mode 64-bit operating system (Windows 10 S-Mode provides added security by only allowing APPs available ( and therefore certified by Microsoft) at the Microsoft Store. If you don't need the added security or you need to install APPs not available at the Microsoft Store, you can switch to standard Windows 10 Home 64-bit Operating System, at no additional cost.) and the minimum/recommended hardware requirements (Is a Graphics card required, the processor speed and the minimum required system RAM and the minimum available hard drive space) to run their program, then compare those requirements to this system's configuration.

Yes. The Lenovo IdeaCentre A340-22 All-In-One system ships with internal speakers.

The Lenovo IdeaCentre A340-22 All-In-One system, model number F0EA003RUS, ships with a wireless keyboard and mouse. There is a 30-day trial of Microsoft Office 365 included as part of the Windows 10 operating system. In order to keep the program active after the trial period, you will need to purchase a product key. You will not need to download any additional software. Try the 25-digit Product Code that came with the Office software you have to active the pre-installed trial software within Windows 10. Here is a link to more information about finding your Microsoft Office Product Code: https://support.office.com/en-us/article/using-product-keys-with-office-12a5763a-d45c-4685-8c95-a44500213759?wt.mc_id=SMCPkeyIA&ui=en-US&rs=en-US&ad=US. Whether a specific program is compatible with this system will depend on the requirements and compatibility of that specific program. We recommend you check with the specific software publisher's web site for their compatibility with Windows 10 Home 64-bit operating system and the minimum/recommended hardware requirements (Is a Graphics card required, the processor speed and the minimum required system RAM and the minimum available hard drive space) to run their program, then compare those requirements to this system's configuration.