Problems constructing the Radio Ad

Whilst constructing the radio ad we came across a few problems, one was the technology available. The micro phone we used to create the voice over only records in  mono, meaning the voice only comes out of one speaker or earphone. This has caused the voice over to become echoed. If we had new equipment, this would have given the radio ad an even more professional sound instead of 
We also had problems with students from other classes just wondering in and making noise, so we had to stop recording until they were dealt with and start the whole process of the voice recording again.
Also the various people we used for the radio trailer at times couldn't compose themselves at times meaning it took longer for them to record what we needed.