Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: in using this adapter will I have audio or do I have to buy something else?  I'm a little confused on the audio aspect
Document: This adapter is very useful for a niche audience. I've hooked up my computer to my TV via Apple TV using this. There's certainly other ways to do this, but this product does its job quite well. Belkin is the embodiment of quality.VGA is definitely a format I could hope to see go away. Products like this one make that easier.
This Belkin HDMI to VGA adapter is solid and well designed. As we know the HDMI signal carries the video and the sound in a single cable, so this adapter comes with an integrated 3.5mm audio port to export the sound while the VGA port displays the image.
While I am not sure this is due to the cable or the port, using this cable results in the non-stretched screen, so I will keep using it. On all three laptops, using this cable and adaptor was truly plug and play.
I needed this to use my laptop which only had an HDMI port on a VGA on projector. RadioShak told me they did not exist, and if they did, it wouldn't work. I ordered and it worked great. The VGA cord needs to have an audio cord for sound.
None of the electronics stores care this necessary little item. Why? So they can sell me a $500 (or more) new projector? My new laptop only has an HDMI output and that doesn't work with the two projectors I have.
Laptop to projector YAY! Must buy (or have) a VGA cord to connect with.
Have used it with a Lenovo U530 laptop and an unknown VGA cable setup at a church and it worked well for video. Haven't tried audio capabilities, but the box says it it Audio/Video.
I replaced the adapter that came with my HP Spectre XT laptop but the Belkin does not provide sound without another additional adapter. There is no indication on the package that it does not provide sound. A ripoff for the high price!
I tried it at work today and it just worked on every projector I tried it on. I wish I'd started with this adapter rather than a cheapo one.This adapter will have an important place in my computer bag at until all of the ancient projectors are replaced at work.
I thought this device was an HDMI to VGA adapter, and that's what it is. However, it is very confusing.It is an HDMI to VGA adapter plus jack for plugging in sound. If you want to go from a laptop or computer with a full-sized (NOT MINI) HDMI (it won't work with your Mac unless you first use a mini to full-sized HDMI converter.
Answer: The HDMI to VGA Projector Adapter transmits video only and requires a 3.5mm aux cable for audio support.