The XPAND YOUniversal Electronic 3D Eyewear are fully compatible with active Infra Red (IR) 3D television sets, computer displays, laptops, projectors and XPAND 3D cinema. Coupled with RF Dongle its the worlds first and only IR/RF hybrid 3D glasses. 3D Glasses, Large, Blue Lightweight Frame Design Highest performace 3D lens Rechargeable Battery Communicates with Infrared (IR) and Radio Frequency (RF) Included parts: Glasses Model: X104LX1 Dimensions: 5 x 2 x 2 Weight: 0.15 pounds