Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Is there a volume control on the base for the voice alerts?
Document: This unit works great. Easy to use, clear voice. Antenna is tall and insures great reception. I highly recommend this unit. Fast delivery from the vendor.
Bought this thinking the external antennae might give it longer range. Alas this is not so. It worked less consistently than my Dakota Alert 3000.The voice alert is horrible also. At least the 3000 plays a merry tune.
I just came back to order another one of these, as we have been using them for years now, to go between the barn and the house (which is a couple hundred feet away.) The units have worked flawlessly and have been a huge time saver. We leave them on at all times, full volume, in case they need to be used. (Of course they are plugged in, so no need to deal with batteries and constant maintenance.)
We bought four of these base stations and two handhelds to replace an old intercom system in our home. They work perfectly and can communicate anywhere in and around our house with outstanding clarity.
first base unit failed 10 mo. into service, hope this second unit lasts longer. first unit was still in the warranty period but can get no response from vendor.
I purchased a MURS two way base station radio to replace an older one I wanted to put in another part of the house. The product was offered for a good price and arrived well before expected.
The M538-BS MURS base unit is excellent. It works with the Dakota Alert detector transmitters. The M538-BS is also a one watt MURS transceiver. Two or more of them can be used as a long range wireless intercom system. They have much greater range than FRS transceivers.
Bought two base units and a handheld.One of my base was in a enclosed Metal Garage. It work at a 1/2 mile but thier was a lot of static. After seaching for the Big Secret on the internet and checking out all the reviews from all sites and the instrucion booklet with no help. Well if the antenna comes off? Here we go  It's a Male BNC end.
I purchased so that my wife could communicate with me when I am in my workshop located about 400 feet from my home. My cell phone does not work in my workshop and there is no other means to communicate except for walking back and forth or shouting at each other. I purchased two base stations and we are able to communicate very easily. I am never late to dinner anymore!
We use these between two houses that are about 500 feet apart. They are on the same elevation but line of sight is blocked by trees and yet these still work great. Only wish we could change the call button sound to be something easier to hear. Right now the only options are all fairly soft tonally, we listen to music and if not in the same room as the base station, would probably not hear someone calling.
Answer: Yes.