Revolabs FLX2 VOIP Wireless Conference SIP System with 2 Omni-Directional Microphones The Revolabs FLX2 VOIP SIP wireless conference phone is a unique marriage of innovative technology and ergonomic design allowing for an unparalleled experience when making telephone calls, video conference calls or using it with your Bluetooth enabled mobile phone or computer to make speakerphone calls. The technology used allows the microphones, the dialer and the speaker to co-exist with other wireless products such as wireless LANs (802.11b&g&n) without interference. The Revolabs FLX2 VOIP SIP wireless conference phone includes digital encryption technology to ensure secure wireless communications between the microphones, speaker and the base station.