【Tested and Working】SONY Professional B-Band Wireless Microphone 6-Wave Set (3 Handheld/3 Lavalier) This is a complete SONY professional B-band wireless system. It's a very luxurious set that can operate up to 6 waves simultaneously. We have confirmed that all transmitters (microphones) pass through the base unit and connect to the amplifier and speakers, producing sound normally. Because it's a professional specification, you can use it immediately in events, conferences, live performances, etc., with clear sound quality and no delay. 【Set Contents】 • Tuner Base Unit: MB-806 (WRU-806 tuner unit x 6 waves installed) • Handheld Microphone: WRT-804 x 3 • Lavalier Microphone Transmitter: WRT-820 x 3 (with genuine lavalier microphone and leather case) • Genuine Antenna x 2 【Operating Condition】 • Sound Output Confirmed: We have confirmed that sound is output normally from all 6 waves. • LCD Display: The LCD displays on the base unit and each transmitter are clear, and the backlight and indicators are also in good condition. • Frequency Setting: Each channel can be changed and synchronized without any problems. 【Appearance Condition】 • Due to being professional equipment, there are minor scratches and scuffs from use, but there is no significant damage. • The battery compartments have also been checked and are in very clean condition with no corrosion such as leakage. 【Other】 • Because it's analog B-band (800MHz band), it can be used anywhere in Japan without a license. • We will clean and disinfect it again before shipping, and we will pack it carefully as precision equipment. This many working units are rare. It is highly recommended as a spare unit or for new installations.