The ZYGO Wireless Voice Amplifier uses an adaptive 2.4GHz digital technology with an auto-pairing system to push sound from the clip-on lapel microphone to the 12 watt remote speaker, resulting in loud, clear, high quality voice amplification. The Wireless Voice Amplifier is compatible with the wireless mic and wired microphones.

 (Description from http://www.zygo-usa.com/usa/)

This Product Includes:

• Speaker
• Lapel Mic
• Charger
• USB Cable
• Belt Clip
• Headset Mic
• Neck Strap
• Data Sheet