【VHF narrowband】: These microphones for singing have VHF audio transmission function, which can provide unparalleled performance, have a high signal-to-noise ratio, provide clear, noise-free, distortion-free clear human voice and excellent sound reproduction, which is different from low-end units 【Ultra-wideband】: This wireless handheld microphone system has an ultra-wideband and wide audio response range with low distortion. Enjoy the cordless singing of karaoke music and the fluency of energetic stage performances 【Audio receiver】: The wireless microphone system includes a plug-in audio adapter receiver with a ¼-inch (6.3 mm) jack. Through the integrated antenna, the wireless range can be extended. It connects directly to amplifiers, stereo speakers, audio processors and DJ mixers 【Rechargeable battery】: The portable receiver only needs to be charged for about 2-3 hours, and it can be used for 6-8 hours. Used for home karaoke, classrooms, offices and commercial applications. Ideal for public audio and recording studio performances 【ACOUSTIC POP FILTER】: Built-in sound wave filter is a noise protection filter for the microphone and an easy-to-control switch. Heavy-duty structure, steel mesh grille and zinc alloy metal to ensure service life