an extension microphone companion device for Grandstream’s GVC3220 Ultra HD Multimedia
full-duplex speaker with HD acoustic chamber, SIP paging,WiFi, BT, 1x10/100Mbps, PoE/PoE+
video conferencing system with MCU supports up to 4-way 1080p Full HD (or 5-way 720p HD, or 9-way VGA) Android 4.4
video conferencing system with MCU supports up to 2-way 1080p Full HD (or 3-way 720p HD, or 3-way VGA) Android 4.4
Enterprise Video Conferencing Server