Yamaha Executive HD 4-Channel Wireless Conference Microphone System without Mics

The Revolabs Executive HD 4-Channel Wireless Conference Microphone System (no mics) is an intuitive and easily installed 4-channel wireless microphone system for conferences, meetings and other group discussions. This system supports up to 4 Revolabs wearable or plug-in microphone transmitters (not included) and features a 4-channel rack base and 4-bay charging station.Intelligible speech is reproduced at CD quality, with a frequency response of 50 Hz to 20 kHz. The system is completely free of battery operation. Drop the microphones into the charging station and enjoy up to 8 hours of operation on a full recharge. The microphones are also impervious to Radio Frequency (RF) interference from PDA and cell phone devices and 128-bit encryption keeps transmissions secure.