Trading channels are a tool that can be used to determine the exact time to open a position. They mainly appear on the chart due to the Trend lines. This is basically the area between two parallel lines.
In total, there are three types of channels:
Upward channel (defined by high highs and lows).
Downward channel (shows low highs and lows).
Lateral channel (each subsequent maximum and minimum are located approximately at the level of the previous one).