Excellent sound: This wireless microphone system is fully equipped with high-quality chips and has automatic noise reduction function. It can highly reproduce the sounds of human voices and instruments, ensuring clearer, purer, and fuller sound quality. Stable signal, wide range: The outdoor wireless range can reach 100 feet. High quality quartz oscillator ensures accurate frequency adjustment, stable signal transmission, uninterrupted, and anti-interference. Very suitable for indoor and outdoor activities such as family karaoke, church, gatherings, weddings, conferences or lectures. Plug and play: Simply plug the receiver into the sound source, insert 2 AA batteries into each microphone, turn on the receiver and microphone, and the frequency of the receiver and microphone will automatically synchronize.This wireless microphones for karaoke is ready to use. Strong battery life: The power consumption of this wireless mic chip is very low. The brand new AA battery can ru