160 FEET LONG DISTANCE WIRELESS MICROPHONES Builtin Newly designed UHF wireless core transmission distance upgrade to 160feet 50M Enhance Signal stability No delay No radiation Antihowling Antijamming Constant frequency WIRELESS MICROPHONE SYSTEM WITH ECHOTREBLEBASS The wireless karaoke microphone has echo treble bass control button so you can choose different sound effects according to different songs PLUG AND PLAY The microphone and receiver will automatically connect Using the Receiver Plug In equipment with 14 inch Mic input or 18 line in Eg speaker Singing machine audio amplifier PA system Voice amplifier Mixers Audio Interfaces truck speaker system Dome speaker system etc BATTERY AND DISPLAY The receiver runs on 5V DC power with no builtin battery eliminating the hassle of battery maintenance The microphone does not come with any batteries we recommend using 2 AA Amazon alkaline batteries The display can show the battery power and signal strength in real time dont worry about Suddenly not working PERFECT DYNAMIC MICROPHONES PERFORMACE Dynamic Microphone BuiltIn Professional Dynamic Microphone coredB value 95dBImpedance 600 ohmsFrequency response 50Hz 16Khz When uses the mouth should be close to the top of the microphone to loud voice for Conference Speech Outdoor Church Family Party Open Ceremony Dancing Instructor Promotion Etc 15 ADJUSTABLE CHANNELS Plug and play automatic connection press the microphone tail switch to turn on the microphone 15 adjustable frequency channel for each microphone if you use multiple microphones at the same time or noise click the switch at the end of the microphone to adjust the channel Keep each microphone channel number inconsistent to avoid interference Packing list 2RCA cable 135 mm cable 165 mm cable1UL certification Adapter 1receiver 2 microphone 1USB cable