Bietrun Wireless Microphones with Echo,Treble,Bass&Bluetooth,160FT Range,Portable UHF Handheld Karaoke Dynamic Microphone System with Rechargeable Receiver for Karaoke,Singing,Amp,PA System,DJ,Stage

160 FEET LONG DISTANCE WIRELESS MICROPHONES: ●Built-in Newly designed UHF wireless core, transmission distance upgrade to 98ft (30m). ●Enhance Signal stability, No delay, No radiation, Anti-howling, Anti-jamming, Constant frequency. WIRELESS MICROPHONE SYSTEM WITH ECHO/TREBLE/BASS: 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 1/4 inch Mic input, E.g speaker, Singing machine, audio amplifier, PA system, Voice amplifier, Mixers, Audio Interfaces, truck speaker system, Dome speaker system etc. BATTERY AND DISPLAY: ●The chargeable receiver is built-in 1200mAh rechargeable lithium-ion battery,work time up to 7 plus hours with charging time 3-4 hours. 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, don't worry about Suddenly not working. PERFECT DYNAMIC MICROPHONES PERFORMACE: ●Dynamic Microphone: Built-In Professional Dynamic Microphone core(dB value: 95dB/Impedance: 600 ohms/Frequency 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.)