Features: 
• Compatible with Panasonic VIERA Full HD 3D Plasma TV 
• Lens Type: Liquid Crystal Shutter; Frame sequential type 
• Viewing Range: Transmitter for 3D Eyewear / Within 3.2 m from front surface (Within 35-degree horizontal, 20-degree vertical) 
• Batteries/ (duration): Rechargeable lithium-ion polymer battery / (Approx. 30 hours operation time for a 2-hour full battery charge) 
• Dimensions (W x H x D): 170.1 x 41.2 x 169.8 mm 
• Weight: 39g 
• Power Supply: DC 5 V (USB power supply from VIERA 3DTV) 
• Materials: Main body: Resin; Lens section: Liquid crystal glass 
• 3D Eyewear case included