Revolabs FLX 2 USB Wireless Conference System with One Omnidirectional and One Wearable Microphones The Revolabs FLX 2 USB Wireless Conference System with one omnidirectional and one wearable microphone is designed specifically for mid- to small-sized conference rooms, executive offices and SoHo environments. Now small office conference calls, executive office communication and home office communication can also benefit from superior wireless audio performance