HD Omni-directional Tabletop MicrophoneThe Revolabs Omnidirectional Table Top Wireless Microphone is intended for use with Revolab's HD series wireless microphone and conference systems. The microphone is designed to be placed flat on a conference table, features a omnidirectional pickup pattern with a pickup area of 360?. The design is also impervious to noise caused by Radio Frequency Interference (RFI), so it can used with confidence around other wireless equipment, cell phones, Blue Tooth devices, etc. A full battery charge is achieved in 2 hours, and allows the microphone to operate up to 8 hours.Omnidirectional pickup patternRFI noise rejectionOperates up to 8 hours on a full chargeMay be used in conjunction with additional Revolabs HD wireless mics- RF-Armor (impervious to RF Interference)- 360-degree pickup- High definition audio for exceptional voice reproduction