Here is a do not disturb sign that works with Slack, Zoom, Google Calendar, and other services to let others know when you are busy. The BusyBox runs on a 5000mAh battery. You can use the companion app to control one or multiple BusyBoxes. You can use the app to adjust colors & brightness too!
The BusyBox comes with 6 different messages that you can slide in easily. It also works with Siri and Google Assistant.