Adjustable Treble/Bass/Echo/Vol: Featuring echo, treble, bass, and volume control buttons, the wireless microphones offer a versatile range of sound effects to match your needs. The cardioid capsule provides a warm and smooth sound with exceptional feedback rejection capabilities. Adjustable Frequencies: With 30 frequency options available, you can use up to 30 systems simultaneously. The multichannel function ensures uninterrupted performance by enabling seamless frequency switching, even if any issues arise with the preset frequencies. Wide Compatibility: Our karaoke microphone is easily connected to devices such as amplifiers, PA systems, karaoke machines, and powered speakers. The package also includes a 6.35mm to 3.5mm converter. Please note that they are not compatible with laptops, iPads, or cell phones. Powerful Wireless Range: Our wireless mic & receiver conveniently pair upon power-up. Our microphone for singing provides a reliable signal without any interruptions. Wi