Three-layer-shielding 99.99% high pure oxygen free copper wire 4K x 2K ultra high definition video 480/600Hz faster speed for smooth video motion 8 to 16 bit color smoothest gradation of color Ready for 3D displays Dolby DTS-HD up to 7.1 lossless surround sound In-wall use all lengths Overview of HDMI enhancement: HDMI Ethernet channel (HEC) Audio return channel (ARC) 3D Over HDMI 4K x 2K resolutions support Expanded supports for color spaces Warranty and returns Warranty: 1 year If the item is defective, please notify us within 3 days of delivery and all items must be returned in their original condition in order to qualify for a refund or exchange Items returned after 10 days of delivery are only eligible for repair. Packaging: 1.4V HDMI cable holy serpent green packaging and product design