Well with the Expences of my appartment now, I wont be able to buy as many thing as I have been off eBay. However, my last purchase came in the mail yesterday. I purchased this wireless microphone for $34.99USD plus shipping. The Cheapest I could get it around here was at Radio Shack for $149. So I put it to the test last night for my normal trivia night and the Microphone worked so well. It was nice being able to run around the room without shouting my head off so everyone could hear. In total it takes 3 AA Batteries, one for the microphone itself and 2 for the reciever, and is suppose to reach up to 30 Meters.
Actual eBay Listing