Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Does the tracer piece have a speaker built into it or do you have to wear headphone when using it?
Document: With the cost of 9V batteries being so high these days, I was shocked that a pair of them were included. As was a set of decent headphones for listening to the signal (do not bother using the onboard speaker -- headphones work great). Product really helped me to trace a multitude of network cables that previous homeowners installed without labeling.
This was the worst tracer I ever bought. The probe rings on everything within 10 ft of the module walls, wires, people carpet. What a waste. Save your money and just get a Fluke Toner and be done with it. I setup networks for a living and would have been better off with a battery, speaker and two leads... pure junk.
Dirt cheap for what it is, thus the 3 stars. Has a cable pin tester built in, which is a bonus. Worked very well on network cabling, but when you apply the alligator clips to a thicker cable such as coax, the signal is way too weak and can only get a tone a couple of feet from the transmitter. Cheap in construction, but what do you expect for the price. One of the alligator clips broke off after using for a few minutes.
We have a new house but none of the telephone sockets are connected, so I needed a line tracer. I did some reserach and found a huge price difference between a professional set and a home-user set. I finally decided on this set and apart from the quality being a little lower than I would have liked, (will stand upto wear and tear unless you're an animal!
Does this mean you can hear a weaker signal if you do crank it up, a signal that can't be heard by listening to the speaker? Maybe in some cases, but in the testing I did, buzzing and interference prevent weaker signals from being heard.
I've had a few toners. This one seems well built, and gives a loud clear tone. I used this for installing a new network and this thing was a great help. I have recommended this to my travel teams at work. For the price it's a great unit.
This display is on both ends of the cable, so if you work from area to area, you can see the readout on either end of your Cat 5,5E or 6 cable.This as well worth the money. It uses normal 9 volt batteries (unlike the Sperry signal tracer which uses slightly weird batteries).
It also helped that I had an idea of where to look within a two foot by six foot section of drywall.I like that all the various cable attachments come with the tracer. The case is nice to have but does suffer from one silly faux pas. If you hang the case from the D-ring or belt loop the pocket for the manual is upside down.
First of all the product was ORANGE, not RED. On day one, I was able to successfully trace a phone line back to the hub using the emitter on the mystery port and the probe on the hub-end. On days 2 thru 7? used this to test the continuity of some network cables. From day 7 on, it would say that the cable was 7/8 good, even though it was brand new or network tested fine-cable.
It would only 'beep' if the prob part touched my finger. I'm currently looking for another cable tester/tracer/toner. If you actually end up getting this, save the packing material. Make sure you give it a good test the first week. I have not attempted to return this or call for trouble shooting. I did thouroughly read the 8-page manual though.
Answer: yes