IR-Wireless & Bluetooth Universal 3D Active Shutter Glasses for kids for Samsung/ LG/Sony/Panasonic/Sharp/Toshiba/Mitsubishi/Philips 3DTV Delivers a true 3D experience - For watching your favorite movies in a new way. Build-in Rechargeable battery. When turn on the shutter glasses, press the button shortly, you can switch the L/R sequence Communicate with the TVs IR emitter- To create a beautiful, full HD 1080p 4D experience Package Content: 1X 3D Universal Active TV Glasses. 1X USB Cables 1X Storage Bag 1X Cloth 1X User's Manual Contentiously working time 40 hours Charge time 2 hours