Dual Microphone Electronic Noise Cancelling. 1-300ft (400m) Communication Range. Enhanced Audio Quality. Grouping Talk for up to Three Talk Groups. App & Webpage Configuration. 1.9GHz Operating FrequencyPower Supply: 1500mAh Battery Frequency Response: 200Hz-7kHz Dimensions: 22 x 105 x 65mm Weight: 200g. An additional or replacement belt pack suitable for use with the Hollyvox G51.. wireless intercom-talkback system
