The set was purchased for a list price of 111,400 yen. It seems it was only used three times. I'm not an expert, so I don't know the details, but... The transmitter side, the microphones, come with two handheld types. There is one receiver (can use up to 2 channels), so the combination is flexible, but you can only use up to two microphones at once. *The black horizontal lines in the receiver gauge image are due to the photography and will appear clean in reality. By adding more receivers, you can use four microphones simultaneously. (A total of 4 units can use up to 8 channels simultaneously) A wireless set with two lavalier microphones that achieves clear sound quality without noise, thanks to 2.4GHz digital technology. It promises excellent performance in situations where you use two lavalier microphones, such as meetings, speeches, and talks. The definitive digital wireless system that enables simultaneous use of 8 channels. ■Included Items ・Receiver (CWR242 Dual Receiver) x 1 ・Microphone CWM240 (Handheld Transmitter) x 2 ・Desktop charger (BC2) x 1