These wireless microphones do more than provide unmatched sound quality – they also enable you to capture and replay audio with remarkable clarity. Compatibility with a variety of microphone styles allows you to customize your setup for every lecture or meeting.• Expandable up to 32 (Americas) or 40 (international) microphones per area• Optional management software available for management and control• DECT protocol protects your investment against radio frequency changes• 128-bit encryption ensures privacy of microphone signal• Compatible with a variety of HD Wireless™ Microphones• Features 8 microphone channelsMicrophones sold separately