Sonken WM-3500 UHF Dual Channel Professional Wireless Microphone kit includes 2 microphones operating at different frequencies and a receiver. Channel A microphone operates at 650MHz to 669.5MHz and Channel B microphone operates at 670.5MHz to 690MHz. The microphone frequency can be adjusted with a click of a button and the receiver will automatically match the frequencies of the microphones. With the adjustable frequency function, you can setup multiple units if you need more than 2 wireless microphones. The WM-3500 receiver unit has a stylish metallic enclosure, it features individual microphone volume controls and dual RF signal level indicators and an on/off power button. There are frequency status LCDs are integrated on the receiver unit and each microphone for easy setup. Each microphone requires 2x AA batteries (4 included) and can last for 4 to 6 hours of general use. You can connect the Sonken WM-3500 receiver unit directly to either your karaoke machine or PA amplifier microphone input using the Sonken WM-3500's mixed 6.35mm microphone output jack (1x ca

Sonken WM-3500 UHF Dual Channel Professional Wireless Microphone kit includes 2 microphones operating at different frequencies and a receiver. Channel A microphone operates at 650MHz to 669.5MHz and Channel B microphone operates at 670.5MHz to 690MHz. The microphone frequency can be adjusted with a click of a button and the receiver will automatically match the frequencies of the microphones. With the adjustable frequency function, you can setup multiple units if you need more than 2 wireless microphones. The WM-3500 receiver unit has a stylish metallic enclosure, it features individual microphone volume controls and dual RF signal level indicators and an on/off power button. There are frequency status LCDs are integrated on the receiver unit and each microphone for easy setup. Each microphone requires 2x AA batteries (4 included) and can last for 4 to 6 hours of general use. You can connect the Sonken WM-3500 receiver unit directly to either your karaoke machine or PA amplifier microphone input using the Sonken WM-3500's mixed 6.35mm microphone output jack (1x cable included) and it also has independent balanced output XLR for each microphone.