Plugs into your USB port for power. No batteries required. Compatible with Windows XP. Software is included so it can be controlled, able to move left, right, up, down.Use your mouse or keyboard to control the ‘control panel’ otates 360 degrees and about 45 degrees up and down. Missile launching sound effects when you fire. Prerecorded sound effects. Able to download your own sound effects and add them to your program. Shoots up to 20 feet at a extremely fast rate. Size : 15.5 x 11 x 10.5cm. Weight: 323gm. Package Contents: Contains 3 foam missiles. Includes 3 feet of USB cable. CD with software, user guide, quick start guide and online support link.