I tossed mine as well. The knobs (if you can call them that and the casing is really cheap plastic. One knob broke off and the casing cracked inside my transport case. Just not durable at all.
I'm very happy with this product. I have use it for 2 years with no problems. It does take a little effort to change the batteries
This product is of poor construction. The light control knob is so flimsey. I broke the second time I tried it. It is difficult to change the LED's and battery. I threw it away... I kept the eye peice. Buy something eles.