Wireless controllers for PS1/PS2. It also has a vibration function. Simply attach the receiver to the controller port of the PS2 console and turn on the switch on the controller to use. Operation has been confirmed with a PS2 to PC adapter. Multiple controllers can be used simultaneously. *Requires 2 AAA batteries (not included) *This is a bulk product, so there is no packaging or manual. *This is not an official Sony product.