Idealoeye makes a 360 Degree 4k Camera for creating 360 degree videos and pictures. Idealoeye 360 contend can used in a special virtual reality headset which has dual 4k screens. The Idealens K2 is an all in one VR 2.5k resolution huge VR headset with built in processor selling for 500€. They also do a huge Dual 4K VR headset.