1Designed with Unique Identification Code: you can connect the microphone transmitter and receiver by using the identification code if the frequency is interrupted for whatever reason. 20V, 5V, and 48V Voltage Adjustment, Compatible with Dynamic Microphone and Condenser Microphone to Realize Wireless Singing: 0V for dynamic microphone, 5V for condenser microphone or audio recording microphone, 48V for phantom condenser microphone. 3Adopts Integrated Digital Chips: intelligent noise reduction, high sound quality reduction, strong anti-interference, and help you restore excellent sound quality. 4Automatic Frequency Matching After Startup, 16 Groups of Frequency Points are Available: after the transmitter is powered on, it will automatically connect 16 adjustable frequency points with the idle receiver, supporting multiple sets of devices to be used at the same time. 5Stable u0026 Long-distance Reception: wireless transmission with 30~50M pickup distance, anti-interference and anti whistle, clear sound effect. 6Equipped with a XLR to 6.35 Plug for Receiver: it can be used in the speaker, mixer, amplifier, guitar and other sound equipment.