Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: can a usb cable extension be added
Document: I was very apprehensive but the range, ease of install (not much) and reliability is exactly what we were looking for. My dog barks every time she hears it.I would only suggest the mount post come with a side cutout for the usb cable when putting it in the ground.
That way I verified it worked at that range.The receiver plugs in to 110VAC but could also be driven by 12VDC. (Possibly a 9 VDC battery would power it? )I would like to see an earphone jack added to the receiver so I could put a speaker in another room too.
The alarm is loud enough to be clearly heard anywhere in the house.Hint: I used a section of old garden hose slit length-wise to protect the cable instead of PVC pipe.
A posthole digger is nice but not necessary. The cable is rated for direct burial so you don't need to glue the pvc pipe. I would highly recommend this unit to anyone who needs to know when someone is coming down your driveway.
Instead what I did was connect the sensor to my cat5 cable at the gate and at the house, 390 feet away I connected the wireless transmitter with the other piece of USB I had cut at the beginning. Now the receiver is about 75 feet away from the transmitter and at first I was having a lot of false alarms but I turn down the sensitivity and so far so good.
Great concept and was really hoping it would work. It lasted about two days and then nothing. Replaced the batteries in the outside unit and again nothing. The inside unit is powered by an adapter and seemed to be working correctly. It just didn't work out for me. The vendor also needs to let people know how long the cable on the sending unit is. From the picture is looks to be about 20 feet, when you get it, it's closer to 10. Disappointing.
I only purchased this product for the driveway sensor because it was cheaper getting it this way than buying the sensor at 130.00. However I did not look at the reviews and had no idea that it was a USB cable that it used. My old sensor used a 3 wire. When I got it I had no choice but to cut the USB cable (even though it said not to on the instructions) and splice it to my existing cat5 cable that my old sensor was using. This did not work good.
The mule works.The alarm reliably goes off and gives me warning when cars come down my 750' driveway. However there are a few shortcomings.First, the sensor's distance is only about 150' direct line of sight. Placing the receiver on the far side of my house, where I most often am, doesn't work.Second, the signal is medium loud, not loud so if I am over on the far side of the house I don't always reliably hear it.Three, the 10' sensor cable needs to buried.
We have yet to replace the batteries and the unit has been in place for about six months. There were no problems with functionality even in very cold (teens, twenties) weather.For final installation, we would recommend cutting a slot at the upper end of the angled end of the PVC pipe which constitutes the transmitter post. This would allow the cable a slightly better exit than just out the post bottom. [Sep 01, 2011 addendum] The unit is still working exactly as advertised and battery life is very good.
PlacedMighty Mule FM231 Wireless Driveway Alarmin service the day I received unit. Set location in a few places to determine where I wanted, but always took batteries out before I moved. Finally found where I wanted it and buried cable and unit about 3 inches deep. Has not false signaled or failed to signal yet, so it performs as advertised. I have transmitter a little over 200 feet from receiver with no obstructions except the front wall of house.
Answer: yes