"I received the SW630 (Wireless Half-Mile Hailer Kit) yesterday afternoon... just before our weekly BMX (bicycle motocross) race. I literally tore open the shipping box, pulled out the big black case, and drove to the store for batteries. Once at the BMX track, my 14 year old son and I took everything out of the bag and had it set up in a very short time. A little tweaking of the volume knob and I was ready to announce our race! The wireless mic was a real plus. I was able to make announcements from all points on the track and the sound quality was superb. This was in spite of the fact that I forgot to plug in the wireless receiver antenna!. In sum, we are very happy with the SW630 and it is the perfect PA for our needs."
Bob Hammond - Vice President Far North BMX - Fairbanks, Alaska
Half-Mile Hailer YouTube Video Playlist