<p>This microphone system seamlessly combines a powerful speaker with dual UHF wireless microphones into one PA system. <br /> Equipped with built-in rechargeable lithium battery, the battery life of mic is about 18 hours. <br /> This PA system can be used simultaneously for antiphonal singing or classroom interaction. <br /> It is deal for indoor activities, such as friends’ or families’ birthday parties, stage performance, classroom teaching etc. </p> <p><b>What's in the box:</b><br /> PA amplifier<br /> 2 Wireless Handheld Microphones <br /> Power Adapter<br /> USB Cable <br /> Audio Connecting Cord <br /> RCA Stereo Cable<br /> Manual</p>