Neck Massager

I am planning to buy the following neck massager because of the stress of sitting several hours in front of the computer daily.

http://bigshop.pk/index.php?route=product/product&filter_name=neck&product_id=612

Has any one tried this or do you know any other good neck massager easily available in lahore. I would prefer to visit the shop and look at the product before buying but I cannot find such a thing.