The Gemini GMU-HSL100 is a complete UHF wireless system with the HS10 dynamic headset microphone, the LAV10 lavalier microphone, the BT10 wireless transmitter body pack and the R10 receiver. This expandable plug-and-play system will meet all your wireless needs with USB rechargeable batteries and long-distance wireless connection. Just plug in, power on and you're ready to rock Choose either the lavalier or headset microphone, depending on your preference and connect to the transmitter. Gemini's GMU wireless system is ideal for many applications, including but not limited to karaoke, busking, weddings, conferences, streaming and podcasting. For untethered audio connections in a variety of settings, chooses this high-quality wireless system from Gemini.