Wireless technology with USB adapter. Fully compatible with PS3 for web browsing and messaging. Easy to use-just clip onto PS3 controller. New style blister packaging and stylish artwork. Compatible with USB1.0, 1.1, 2.0 versions. RF2.4GHz technology. Available over 6 meter straightaway range. After well connected, this wireless keypad and it's receiver will be partnered automatically. Leap-frequency communication solution, strongly anti-jamming. LED connection indicator. Compatible with all PS3 console, including US/Japanese & EU version. Standard voltage: 3V (2AA batteries not included).