Electronic Alarms and Home Security Devices - Need help with a project

Hi I am new here and am looking for help on a project that I am trying to start. I would like to have, in my gaden, a speaker that has a remote with 4 or so buttons that when pressed play 4 diffrent voice recordings. In my head it sounds quite possible but after looking over the internet I cant find something capable of what I am looking for. If anyone has any ideas or can point me in the right direction I would very much appreciate it...

thanx guys

Actually what you are after isn't that tough. Try the following device:

http://www.elkproducts.com/products/elk-124.htm

Then you use a 4 channel wireless receiver like this one: http://www.linearcorp.com/product.asp?product=SSR00070

To actually trigger the audio device.

It all runs on 12vdc.