NextGen, a company better known for remote control extenders,...

NextGen, a company better known for remote control extenders, introduced $79 universal active-shutter 3D glasses that it says will work with “virtually any 3D TV.” NextGen claimed its universal glasses were the only ones available that use rechargeable batteries. When we brought it to NextGen’s attention that Monster’s universal MonsterVision Max 3D glasses ($129) are also rechargeable, the company said it would retract its original claim and replace it to say it’s “one of the first” to offer 3D active-shutter glasses with rechargeable batteries. Xpand’s universal X103 3D glasses ($73.90 at Amazon), meanwhile, operate on replaceable CR2032 batteries. The NextGen glasses are rechargeable via a supplied USB cable and have a three-hour charge time providing 50 hours of operation per charge, the company said. NextGen will exhibit at the CEDIA Expo showing the glasses and a new line of flat-panel display mounts, it said.