With the Google voice search for smartphones, iOS and Android, not only can you say your question, but your search app will also speak your answer right back to you. Have a look at the video…
“Fast and accurate voice recognition technology enables Google to understand exactly what you’re saying. Getting an answer is as simple as tapping on the microphone icon and asking a question like, “Is United Airlines flight 318 on time?” Your words appear as you speak, you get your answer immediately and—if it’s short and quick, like the status and departure time of your flight—Google tells you the answer aloud.”
source Google
Good news. I’ve tried using my lg smartphone, and it was no problem :-D