Wireless dual vocal set. Includes (2) SKM 825-XSW handheld transmitters with mute switch and e 825 capsules (cardioid, dynamic), (1) EM-XSW 1 DUAL stationary receiver with internal antennas, (2) MZQ 1 microphone clips, (1) NT 12-5 CW power supply and (2) pairs AA batteries, frequency range: A (548-572 MHz)