We all know the NYSE (I guess I have to called it NYSE Euronext now, just sounds funny) opening bell. I have this bell play at 9:29:55 every morning, and 3:59:55PM every afternoon. However, I don't trade anything on the NYSE. I trade the CME! So, does anyone (particularly who has traded at the merc) know if there are just two bells, one at open and one at close? You can hear the opening CME bell in the first few seconds of this video that Mike posted:

MrTopStep Opening Print Video 8-21-2012 - YouTube

You can hear a short electronic tone follow the bell sound. Also, you can hear a similar tone here in the beginning just before he turns the monitor over behind him.

Closing Print 8-21-2012 - YouTube

Is there somewhere I can get an electronic version of this bell? And what's up with the bell versus the tones? What do they signify? I'd like to use it if possible.

josh 

And what's up with the bell versus the tones? What do they signify? I'd like to use it if possible.

As far as I know, every 15 minutes a sound is heard on the CME floor warning traders to report their trades.