Q8n Control is an app that enables wireless control of the ZOOM Q8n-4K Handy Video Recorder. An iPhone, iPad or iPod Touch can be used as a remote control for an Q8n-4K. Key functions, including recording, playback, stopping and searching forward, are possible. Input levels can also be monitored. Note: A BTA-1 wireless adapter is necessary to operate an Q8n-4K with Q8n Control.