LEKATO Wireless Microphone K380S [Set of 2] and an additional receiver. This product is originally designed to receive two microphones with one receiver. However, since the volume of each microphone cannot be adjusted individually with a single receiver, I purchased another receiver and paired them separately, using one microphone with one receiver. (It is not possible to receive one microphone with two receivers.) I have used this product a few times indoors for testing, but it is practically unused. I am also selling another set of the same product. If you wish to use four microphones, you can purchase them together. The combined price for two sets will be 9,000 yen. Please leave a comment if you are interested. Thank you. (Product Description) ● High Sound Quality and Signal Stability: The LEKATO K380S wireless microphone uses the latest UHF digital signal modulation wireless transmission technology, ensuring high sound quality, stable sound quality, and low audio transmission delay. The international standard operating distance is 30M. It supports up to 10 sets to be used simultaneously in the same area (each set uses a different channel), avoiding interference signals at any time. ● Rechargeable and LED Display: Both the microphone and receiver are rechargeable. There is no need to purchase batteries. The microphone battery lasts for about 30 hours, and the receiver battery lasts for 15 hours. The display with dual Type-C charging ports can display the battery power and signal strength in real-time. You don't have to worry about it suddenly not working. ● With Receiver: The rechargeable UHF dual wireless microphone not only requires no setup but also eliminates the need to purchase batteries. It has a very convenient plug-and-play function. ● Suitable for Many Occasions: Equipped with a 6.5mm jack output, it can be connected to speakers, recorders, power amplifiers, mixers, PA speakers, bus/car audio, and DVD players for enhanced connectivity. It's more fun and easier to use. - Accessories: 2 microphones, 2 receivers, USB charging cable, user manual Thank you for viewing.