They work great, do their job. The case to hold them doesn't lock them in place. So them sitting in a back or some were they will get jostled around, they'll be flying around and hard to track down. Why weren't these able to clip into their holder? Seriously, fix the poor design. I shouldn't open my bag and find them lying everywhere except the carrying pack.

As described.

Just purchased a pack of these for my current project.My Tester is an Ideal VDV MultiMedia. When Plugged in directly into the tester, the Identifiers return an incorrect ID. I had to spend time re-labeling them based on return ID. Several return duplicate IDs. 2 return no ID at all.