The Hearit is two personal amplification devices in one unit that can be utilized in any environment to assist those needing a little "boost" to hear more clearly. The built-in directional microphone makes the unit very suitable for communication in situations with significant background noise. It can be used for simple conversations, meetings, or when listening to the television or stereo. The built in Loop receiver picks up the induction loop signal in movie theaters or other public venues that are equipped with this technology. The Hearit uses two AA batteries and comes with a pair of light headphones as shown. You can use your own headphones or ear buds if they are equipped with a standard headphone connection.