Digital Wireless Microphone Adapter MicLink Wireless aims to take the complexity, frustration, and cost out of traditional wireless systems - creating a flexible, all-in-one solution that gets you up and running with the dynamic mic of your choice. SPECIFICATION: 2.4 GHz digital wireless connectivity Supports 5 simultaneous wireless systems Auto-pairing of transmitter and receiver Rechargeable lithium-ion battery for transmitter (6+ hours of power) Power supply included; wall adapter