While glassless-3D TV is slowly picking up in popularity, it’ll be quite some time before it becomes something that every home or living room has. Regular 3D TV (that requires glasses) is only starting to catch on now, and people aren’t exactly queuing up miles to get their hands on one. Because of this, there is a market for third-party 3D glasses and Sansa knows this. That is why the folks over there have come up with the Universal 3D glasses. One of the major drawbacks to having a 3D TV is the fact that you need to wear glasses in order to experience it. What happens if you lose the glasses? Or they don’t work anymore? They cost a bomb to replace, and not all manufacturers charge the same price for their glasses, and most glasses aren’t compatible with 3D TVs from other manufacturers. Sansa’s 3D glasses are touted to be able to recognize 3D signals coming in from any 3D TV – Sony, Panasonic, Toshiba or Sharp – which is a bonus if you own more than one 3D TV of different brands at home or if you need a spare pair of 3D glasses when heading over to a friend’s house to watch 3D TV together. In addition to being universal, the glasses cost $100 a pair – which is reasonable if you take into account its universal functionality. It recharges via a USB cable and can be purchased in 3 different sizes – small, medium and large and they even come with a nosepiece for those of you who wear spectacles. If you’re interested in purchasing these glasses, head here.