MOACC 2013 Newest Economical UNIVERSAL Eyewear 3D Rechargeable Infrared IR (Bluetooth/RF NOT Supported) Active Shutter Glasses For Panasonic, Samsung, Sony, Sharp, LG, Toshiba, Philips 3D HDTVs -Black Improved Design: Portable,Light Weight and Comfortable for long time wearing. Better Viewing: Wider vision making the viewing experience Superior. Green consumption: Recharge with micro USB cable.3 hours recharging provides 50 hours operation. Easy Operating: Simple One Button Operation w/ Auto Shut Off, detailed user manual attached.