You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
You will be given a review about a book, an item, a place or a movie. After that, a question is given that you should answer using a certain span of the review. Your answer should be from the review itself and should not contain extra words, and should not be a combination of different spans. If there's no direct answer to the question, answer with a part of the text that is the most relevant to the question. See the examples for clarification.

review: I had a smaller headset that went on the ear. After a 8 - 10 hour workday, my ears were throbbing red and painfully sore. With this headset, I can go the same shift and not feel any pain on my ear. They may feel a little on the heavy side, but if you adjust the head phone cups just right and stretch them, you will not have any problems.Quality and sound, words cannot explain. Its so clear and loud, the headset holds in the sound. When I am on a call or listening to music, I do not hear nothing else, but what's coming in through the headset.
question: Does the headset block sounds from outside?
Solution: I do not hear nothing else, but what's coming in through the headset.
Why? The question asks about whether the headset lets outside noises come through, and the output marks the shortest span of the review that completely answers the question.

New input: review: This is a very comfortable mouse! I didn't give it 5 stars because it's a tad big for my hands, which might just be a little smaller than average - but it always seemed to me it is harder for those with larger hands to find mice, so that's probably a good feature. It is still a big improvement! It has nice grip on the thumb side and a nice-feeling semi-rubberized right side (which I wish were a little more grippy). The scroll wheel has a very nice feel and grip. The nano receiver fits into the bottom fairly firmly. Completely plug and play on my MacOS10.8 setup. Tracks and slides nicely, feels quality all over. The DPI changing button is in a nice spot where you won't accidentally hit it, too. Great buy!
question: How is the button easy to press?
Solution:
The DPI changing button is in a nice spot where you wo n't accidentally hit it