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: Since it is amplified, what kind of battery does the amplifier use? Is battery included?
Document: We do not have cable TV at the office where I work and we use the TV to check on weather reports to plan our work week on. After trying several other digital internal antennas I happened on this one. I believe the amplifier is what makes the difference,I tried the same type of antenna from the same company which was not amplified and it did not have the reception that this antenna does.
At least not as well as my rabbit ears. I was wrong.I replaced this antenna (Philips MANT-310 Amplified Indoor Antenna), which was hooked up to my HDTV in the basement with sketchy signal quality. The reviewed antenna worked awesome, right off the bat (with the amplifier attached, of course). The only times the signal suffered were when I placed the antenna too close to the TV or the stereo I use for amplification.
Since I'm a bachelor living in my own house, I don't really have that much money to spend on high dollar cable. I have internet and that's about it. So I decided to get an antenna so I could watch local channels. I'm within 9 miles of every station around me according to the website the instruction booklet said to visit. I have repositioned my antenna everywhere. Most people are getting some kind of signal. I got some indistinguishable audio on 2 out of 178 channels. That's it.
The antenna is highly effective, but the coax connectors were cheap. Ditto for the included amplifier. Good solution, works well in an urban area (Seattle).
This was the only internal antenna I have found so far that was able to receive that station. I have since bought a second ANT1450B antenna for my own personal use since my experience with this one was so good.The flat design makes it easy to hide away and not appear so noticeable.
Decided to free myself from expensive cable bills and just use an antenna instead....very tough decision, especially since we'd be doing without our &#34;must-haves&#34;:  The Walking Dead, Bates Motel, Hannibal, The Americans, Justified, Storage Wars, Duck Dynasty, the Disney Channel and HGTV.
No antenna seems to get all positive reviews, so I was reluctant on purchasing this one. However, it works great for me. I needed to get it after Comcast took away local high definition stations. I use it with a Channel 3 Signal Combiner. The Comcast digital transport adapter comes in on Channel 3 and all the digital stations come in through the antenna. I had no issue setting it up and I really like it since it sits on a shelf and is completely hidden from view.
Before you throw this in the garbage, or return it, consider purchasing a better pre-amplifier to replace the included one. Take it from me, we went from 4 channels to 16 with this antenna just by replacing the pre-amplifier. We used to have all 16 before we moved with the included pre-amplifier, but when we moved we moved to an area of higher interference from structures and powerlines.
This was all it took. This replacement pre-amplifier is far more powerful than the included one. So, for around 45 dollars and with a little patience, you can have a pretty decent setup, and save the hassle of having to buy a larger outdoor antenna for a greater cost. Based on the antennas I looked at on here, you could easily save 20 dollars or more if you try my advice first.
I read through the reviews before buying, and assumed that those who had negative reviews were connecting the antenna wrong. Unfortunately, that is not the case. I should have known when most of the positive reviews said they were getting a clear signal without even using the included amplifier.After connecting this antenna, positioning it in every angle, and moving it next to windows on either side of my house, I could not get a single channel signal strong enough to show constant sound and video.
Answer: The antenna's amplification is not powered by a battery, it plugs in to an electrical outlet.