Bravo View IH-07AB Dual Source Automotive IR Wireless Headphones: * Dual source connectivity * Leather ear pads and headband * Fold-flat design for seat pocket storage * Multilevel adjustable headband * Can be used as a wired headphone * Auto mute and auto power off * A/B source switch * Personal volume control * Mini-jack audio input for MP3 players and iPods * Frequency response: 20-20,000Hz * Speaker: 40mm Mylar * Power: two AAA batteries (not included)