Depending on which source you read, you have between 10 and 60 seconds to convince your audience that they should spend more time listening to you.
10 seconds seems too little time, right? To experience how long 10 seconds is, set a timer for 10 seconds or have someone count off 10 seconds on a stopwatch while you sit quietly. 10 seconds is an eternity of spoken words.
Break your pitch into short segments, each ending with a reason why your idea will save your audience time or money (aka a "benefit statement").
If your pitch lacks benefit statements, shorten your presentation. Your audience will appreciate a concise, relevant pitch.