This wireless handheld microphone receiver has 6.35mm (1/4") output, you can connect it to any of your sound system like PA, mixers, speakers, amplifier and karaoke machines with 6.35mm (1/4") mic input. Your vocal sound is transmitted to the sound system wirelessly. If your sound system is 3.5mm mic input, use the enclosed 3.5mm to 6.35mm adapter. Volume will be adjusted from the audio device end, so make sure your audio device has mic volume control. 2.STAGE SOUND QUALITY: High quality sound transmission, clear voice and without feedback, free from distortion. This handheld wireless microphone is designed for vocal use in live performance, sound reinforcement, and studio recording.