Used item in great cosmetic condition. Pulled from working university A/V setup. Microphones and charging station NOT included. Power cable not included.
Details:

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, tabletop or plug-in microphone transmitters 

Intelligible speech is reproduced at CD quality, with a frequency response of 50Hz to 20kHz. The system is completely free of battery operation.

CD quality audio fidelity with up a frequency response of 50Hz to 20kHz
Supports 4 channels of wireless communication and two systems may be linked to double the supported channels
Comprehensive and easily installed 4-channel rack mountable base