Designed for 3.5mm jacks and virtual 7.1 channel devices (such as headphones, earphones, or microphones) that stop working or have output cut-in and cut-out issues. The USB headset adapter is also suitable for the sound card in the computer/notebook/desktop computer to disconnect or lose the connection with the motherboard. You can also use our products on iMac/Mac Mini devices at the same time to use microphones and headphones. Make the sound that the computer can't make louder, create a surround sound effect, and give you a dreamlike feeling. The USB audio adapter supports ordinary stereo, in-ear headphones, in-ear headphones, 3.5mm jack headphones or microphones, Raspberry Pi 2/3 Xbox PS4 Surface tablets, and is especially suitable for gaming headsets. The USB sound card is easy to use and does not require additional drivers. Plug and play, instant audio playback. The microphone/headphone mute design allows the headphone and speaker modes to be switched freely without unplugging anything from the computer. The output audio sound can be adjusted through the volume adjustment wheel. The mixer function can electronically adjust the output level. The function keys include microphone mute, speaker mute and volume increase/decrease scroll wheel. Mini LED indicator and surround sound can improve the level of game audio. Two headphone jacks and one microphone jack can meet all your needs for USB external sound card adapters. The external USB 2.0 sound card adapter is compatible with all mainstream operating systems, such as Windows 7/8/XP/10/Vista, Linux, Mac OS, etc. The lightweight and portable size makes it easy to use and carry.