The handheld (b) add-on is a free add-on for the TeamViewer QuickSupport app on Android devices. It is not a standalone app and is only available for download through the TeamViewer QuickSupport app. This add-on allows users to remotely control and access handheld devices, making it a useful tool for businesses and productivity.

With handheld (b), users can remotely access and control supported Android devices through the TeamViewer QuickSupport app. This allows for easy troubleshooting and support of mobile devices, making it a valuable tool for businesses and IT professionals. Additionally, the add-on provides secure and encrypted connections, ensuring the safety of sensitive data.