I bought my EAR-15 plugs at the Cal.St.PTG Convention last February. They cost me $140. I consider it a good investment. I also bought a pair of full-block plugs for $40 - another good investment. I use the full block plugs for the usual applications - using power tools, stringing, etc. I also use them during airplane flights and for driving long distances. It really makes a difference. At the PTG convention in Orlando, I discovered a bonus feature of the EAR-15's. (They attenuate 15 dB.) I went to the hotel lounge with a group of people after one of the receptions. It was quite loud and we were yelling at each other to try to be heard. I popped in my plugs and I could hear my neighbors talking to me. The plugs killed enough of the deafening background noise to make that possible. They could not hear me however, yell as I might. I was impressed. I also use the EAR-15's at movie theaters(where the volume is always too high for comfort.) Needless to say, I use them for tuning, too. Bob Anderson Tucson,AZ
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