Buy on Amazon : http://www.amazon.com/gp/product/B00CPYKW4S?tag=lottalatte-20
Okeba Ultralight RF/Bluetooth 3D Active Shutter Glasses For Epson 5020 5020ub Projecotor
BluetoothRF active shutter glasses
Battery 37V LI-CON Charge Time25 H
Frames with ABS material ultralight make the comfortable experience of watching movie