The Opening Range Breakout is the range set during the first few minutes (usually 15min) of the market regular session. When price breaks through these levels, we tend to get price continuation.
This indicator scans the entered watchlist for their ORB ranges, and notifies when price is approaching their ORB levels. This allows the trader to quickly scan the setups of multiple tickers in their watchlist, and when alerted they can go look at its chart and determine if a high probability trade is available to be made.