I recently purchase this megaphone for a company picnic. I found it to be of good sturdy plastic and was able to project my voice over the fields very well with it. The sound clarity was good, and ease of use was simple. I think the directions could have just stated it took D cell batteries but other than that we were very delighted with it.
One thing to note it does not take being hit by a flying kickball very well. The plastic speaker casing cracked but to it's credit the speaker still worked afterwards.