It contains an internal microphone for voice search and voice commands, two coin-cell batteries (CR 2032) providing up to a year of battery life, and in IR blaster and volume slider for controlling TV or receiver volume. The optional accessory, SHIELD remote with headphone jack, supports a 3.5 mm headset jack supporting stereo audio and a rechargeable battery with a micro-USB port and USB cable for charging. The SHIELD remote with headphone jack does not have an IR blaster.