Instruction: Answer the given question using the supporting document.

Input:
Question: I bought this for my Surface Pro. Audio does not work. Do I need drivers?
Document: Added a blue tooth mouse and keyboard, and that's what it is. Excellent lower cost alternative to the premium brand. I have a surface Pro 2 (not an endorsement, FYI only), so the plug on the tablet end won't fit squarely to the tablet's beveled edge, but it is still secure.The audio output through the HDMI works, but may need to be "turned on", by going into the control panel and looking for "manage audio devices". The ultimate couch potato enabler.
Works w/ my Surface Pro 2 which i bought it for. Cannot verify audio. Picture output works fine as i had hoped.
I bought this for the surface and it doesn't work. The male side doesn't even plug into the surface. This was a wasted purchase.
This adapter allows me to connect my laptop to any TV or Monitor using HDMI. This way I don't need an audio connector, HDMI transfers both audio and video.
My decision to buy the Surface Pro 2 was largely based on discovering that I would need an adapter. I was baffled by the 39.99 price tag at the MS store. While I was contemplating the purchase, I surfed Amazon and found this. Thank goodness I didn't spend 40 bucks on an adapter that performs the exact same way.
This product arrived in perfect condition, is a quality product, and arrived on time. However, I cannot rate its performance since it seems I ordered the wrong product and it does not work with my computer. I will be returning it and ordering the right piece as I have full faith in Amazon to deliver. Now I just need to figure out how to return it.
Very easy to set up...which suggests that I needed to actually set something up. No...just plug it in and it worked. Almost better than my last laptop with HDMI built in..I'd have to change the output from the internal speakers to the HDMI port. With this I didn't need to.So..plugging it in at first..It was so simple I almost doubted it would work. But plugged it into my TV and it just worked.
I bought this to use on my Surface Pro 2. Its much cheaper than the Microsoft adapter and it works really well too.
I bought this for use with my Surface Pro 2 to connect to my tv at home and elsewhere. It transfers video and sound wonderfully. The small size stores easily in my computer bag.
Nice and compact.. My Surface Pro does not send Audio to my TV. I was disappointed by this feature.
Answer: I simply used the audio out from the surface.  (Bought a headset "splitter" from the radio shack to separate the audio out from the microphone in and ran the audio out portion from the surface as an audio input to the stereo system.)  This does not answer your question, but it is how I resolved the issue.