Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Kensington wireless Expert Mouse
Review: The trackball itself is great, as is the accompanying software. But, yes, this thing does eat batteries like mad. If you don't really need a wireless version, you should by all means get the wired one (which is less expensive anyhow). But if you must have a wireless, be prepared for the hidden cost of buying batteries all the time, or, betteryet, getting some rechargeable C batteries and a recharger.
