Remote Pack - Color Varies for Wii Full Motion-Sensing Technology creates a unique gaming experience Feel the game with Rumble Feedback in the Remote Remote features Built-In Speaker that plays the sounds of the game Built-In Rechargeable Lithium Polymer Battery lasts for hours on a single charge Expansion Port allows additional input devices (i.e. Controller and/or Motion Plus for Wii) to be connected to the Remote for enhanced game play