Wireless 4 in 1 karaoke Microphones for Wii PS3 PS2 Xbox360 with USB Converter Convenient and Useful Please do not put the microphone near the television when using, it will make an undesirable sound. Please pay attention to the limitation of game itself. Due to the software limitation of some games, using 2 microphones at the same time is not allowed on all games and one of the microphones may lose sound. Please check before using. Please do not break or transform the product privately.