Multi-port sound card: The external sound card has its own audio chip, which can transfer USB port to multiple 3.5mm so it can connect 3.5mm audio devices such as headphones, headphones, speakers, microphones, etc. Supports single plug and dual plug headphones at the same time, no adapter is required. Stereo Sound Adapter: It prevents electromagnetic interference and enjoys stable and optimal sound quality. perfect for Skype / ICQ / Hangouts / TeamSpeak, it is also suitable as a second source for simultaneous operation of speakers and headphones. Wide compatibility: Compatible with all common systems, including XP, 7, 8, 8.1, 10 and Vista, IOS systems. Plug and play, no drivers required. Simple and convenient: easy to use, no additional drivers required. Plug and play instant audio playback. Mixing function: The mixer function can adjust the output electronically. The function keys include microphone mute, speaker mute and volume up/down wheel. Mini LEDs and surround sounds increase the level of game audio. Two headphone jacks with microphone jack for all your external sound card adapters. The multi splitter is designed with stereo sound adapter combo (2 headphone + 1 microphone) especially for laptops, tablets, and ultrabooks and expands USB 2.0 high-speed port into three easily. It is also a highly flexible audio interface, which can be used with laptop system; Simply plug the sound adapter into your USB port, and then plug your headphones into the Adapter. Designed with 3-this compact USB 2.0 high-speed hub is small enough for travel capable enough to meet your connectivity needs. omic design, humanized technology considerations, stable performance, durable and reliable. No driver needed, plug and play, add USB 2.0 to your computer easily. Input interface: USB/ Mic/ Line/ SPDIF Headphone jack: 3.5mm*1 Microphone interface: 3.5mm*1 Four pole single plug interface: 3.5mm*4PIN Amer