I was pleasantly surprised about this tester. It's lite weight and works well. When the alligator clips are put on the punch block, the tester plays a tone over the speaker so you don't have to hold it to your ear while surfing the punch block. You can also see when it finds dial tone on the display. The only reason I didn't give it five stars was because its made rather cheaply but for the money its hard to complain.

A few months ago a Centurylink tech came to service our phones and he had this huge ancient looking wireless contraption that he tested lines with. I got to use it and was really amazed at how much I needed one. No way, they're crazy expensive. I found this one that does the same thing and it's honestly the best thing ever. I do in-house IT work and it's more than enough for what I need it for. I fixed my own troublesome fax line install that "couldn't receive faxes" but I had mixed up the phone line. I found that error using this device. I don't have to use a cordless phone that plugs into the wall to test lines anymore. Joining lines with new phone numbers is much faster now. So many things are not labeled in our punch blocks that it's hard to guess but this makes my life so much easier!

This works, but instructions are COMPLETELY in Chinese, it is a simple tool and easy to figure out, but come on.

I'm basing my rating on my needs and the price point. There are Butt sets that are a LOT more money, more durable, and more features, so I'm not really comparing to those. If you have minimal use needs for some occasional testing and you're not going to be tossing it in a large bag of heavy telcom tools etc. then this is a great tool for your needs. It comes with alligator clamps and a 66 block tip as well as a coupler, so you've got what you need to test with various termination blocks/wires/jacks. I was able to hear the volume fine in a large data center too, so that was impressive. It does what I need and I didn't have to spend a few hundred on it, so I'm thrilled. Would I like to have a full fledged rugged butt set? Sure! Do I need it? Nope, not in my case. I just need to find a zipper pouch or something to store it in as I've been using the original little box, which is hard to cram everything back into. But for the price, I don't really expect a case to come with it.

I bought this butt-set for my brother who is new to the voice and IT world. This tool is simple, cheap and gets the job done for a very low price. It's not very durable so don't expect it to survive too many drops.