Enjoy 3D content without compromise to picture quality with these 3D active shutter glasses and your Panasonic 3D TV. Designed to deliver an optimal 3D viewing experience featuring a battery life of up to 235 hours. These Panasonic compatible 3D glasses are rechargeable, no need to purchase batteries, and include 4 free USB charging kit and 1 Free 6ft 3D HDMI Cable.