Excellent condition Panasonic wireless microphone WX-4100B. Used a few times after being purchased new. Operation has been confirmed and there are no issues. As a bonus, I will include new Panasonic batteries. I will carefully pack and ship the item. Immediate purchase is OK. If you have any questions, please comment. This is an 800MHz band speech wireless handheld microphone. It uses an electret condenser microphone unit, delivering clear sound in meetings and lectures. The feature of this microphone is that "anyone can use it intuitively and easily." The size and weight are easy to use for both adults and children, the power switch is easy to understand, and it is highly stable, so it is used in many facilities and schools. ● Uses a high-clarity electret condenser microphone unit. ● Acoustic antibacterial urethane is used inside the net to reduce mold and fungi. ● Transmission frequency: 806.125 MHz to 809.750 MHz (30 waves at 0.125 MHz intervals) 【Condition】 ● Used item. ● Power turns on, and I confirmed that sound is produced by a microphone test. ● Compatible with the new spurious emission standard. 【Please note】 A wireless microphone requires a receiver that supports the frequency. It cannot be operated with just the microphone and speaker. Please prepare a receiver that supports the frequency. Thank you for viewing. It can be used without any problems, but please understand that it is non-refundable and non-returnable (3N). (^_^) ※ There is another one in the same condition. If you need two, please comment. I will discount it by about 1000 yen if you purchase them together.(*´ω`*)