I bought these for my glasses Panasonic P5VT30 complementing the two pairs sold with the TV. They are lighter, the charging time is very short for a long battery life (several films I am on March 3 without reloading). Quality made in 3D is really excellent. A real treat !!! 4 stars only because of the price (99 before Christmas 2011). But, hey, have to know what you want!