1. The ordinary version is 3.5mm round hole, the line length is about 1.5 meters, the upgraded version is the USB jack, the line length is about 1.3 meters!
2. Microphone is not a loudspeaker, is to listen to each other to listen to, such as the microphone into the computer host, can not hear their own voice, need to open the voice or download K song software to hear their own voice