... battery, 3.new design 4.Support DIGITAL and ANALOG mode 2.4GHz Wireless controller/Joypad/joystick for PS2 This product is radio frequency ... PSX, The working frequency is at 2.4GHz, has remote radio control, convenient operation and double vibration. This wireless controller is built-in battery, which ... get rid of your tiredness for PS2 built-in battery 2.4GHz Wireless Controller/Joystick(JT-0111001C )