Instead, the current crop of 3D TVs relies on active-shutter LCD glasses provided by the TV manufacturer. In addition to being pricey—about $150 or more per pair — and somewhat bulky, the glasses only work with the same-brand TV. But by the fall we should see the first "universal" 3D glasses that can work with most major-brand 3D TVs. Two companies, XpanD and Monster Cable, are leading the charge with 3D glasses they say will be out in September. While they aren't going to be much—or, in Monster's case, any — cheaper than current models, they will be lighter and a bit more stylish and, if the manufacturers' claims are to be believed, they will outperform current 3D glasses. If so, it's not hard to imagine the day when toting a pair of 3D glasses to a friend's house is as common as bringing a six-pack of beer.