Radio Traffic Saver by EliteMindsInc. Radio Traffic Saver - Police Scanner VOX Recorder
Got it free when I purchased Butel's scanner programming software via PayPal. This link FREE Bonus Pack Request Form
gets you the free license when you enter your PayPal transaction number or Key1 which Butel sends you.
Radio Traffic Saver gives you the ability to instantly replay the last 15, 30, or 60 seconds and additionally replay saved audio files. Although it doesn't do one-touch 180 second replays, it's pretty good other than that.