[Wireless microphone and headphone system] Only applicable to microphone jack, not applicable to auxiliary jack, otherwise there will be no sound. This wireless headphone microphone adopts a high-sensitivity capacitive microphone, which can pick up sound 360°, with clear and distortion free sound quality. Signal stability, No delay, No radiation, Anti whistling, Anti interference, Constant frequency. [Plug and play wireless headphone microphone] This fitness microphone earphone is convenient to use, just plug and play. After successful matching, the blue light of the indicator light will stop flashing. No further action was taken. Note: This is not a Bluetooth microphone. [Wireless microphone headphones and handheld 2-in-1 and 3D stage reverb effect] There are two ways to use wireless earphone microphones for singing: as a universal earphone microphone, or by removing the head stand, it will become a handheld microphone. Simultaneously pressing the wireless "+" and "-" volume buttons on the head microphone will activate the stage reverb effect, intelligently beautifying your voice and making it more three-dimensional. Color:Black Material:plastic Package Contents: 1set * microphones