Sony has officially announced its long-awaited next generation games console, the PlayStation 4.
The electronics giant held a special event in New York to reveal selected details about the machine and to give the world a glimpse of some of the hardware - although not the console itself.
It did however show off the new DualShock 4 controller - which will have a built-in touchpad and a "share" button - and it revealed that the device will have an x86 CPU, an enhanced PC GPU and 8GB of RAM.
The company also showed off a "light bar" accessory which is capable of tracking the controller around a room in 3D, for games and activities incorporating motion-capture technology.
Stating only that the PS4 would be on sale by Christmas, the company also revealed that gamers would be able to use free-to-play content on the console.
No pricing details were given.
The machine is expected to be more powerful than Microsoft's next-gen Xbox console.