For an incredible stereoscopic experience with your LG3D television, these LGAG-S100 Rechargeable Active Shutter 3D Glasses are required. A built-in emitter communicates seamlessly with your TV to deliver jaw-dropping Full HD 1080p 3D entertainment! The LGAG-S100 Rechargeable Active Shutter 3D Glasses can be easily recharged via a USB (Universal Serial Bus) port, & offer up to 40 hours of wireless use with each charge. In terms of technology, the LGAG-S100 Rechargeable Active Shutter 3D Glasses use special liquid crystal lenses which actively lighten & darken in concert with your three dimensional content, with each of your eyes seeing a slightly different image to create an amazing three dimensional effect. Unleash the power of your 3D LGtelevision with these stylish AG-S100 Rechargeable Active Shutter 3D Glasses!