Package List 1 x USB sound Characteristics -Size: 19x1.5x0.8cm/ 7.48x0.59x0.31inches portable sound card. -Material: Aluminum alloy Plug- for Computer. -Color: Black Mic and Earphone Sound for PC. -This adaptor has a built- card, with which you could easily use the USB port of your PC for audio transmission external sound adapter. USB sound card for laptop -With the buttons on it you could easily turn up and down the volumn 7.1 Sound Track Card. -The efforts and fine craftsmanship we put into the making of this product make for superior reliability external audio card for laptop. -Manufactured with the purpose of durability, this product would spend eminently long period of time with you creative . -It has been optimized for both microphone and earphone USB 3.1 Sound Card.Goods InformationUSB a adapter With the buttons on it you could easily turn up and down the volumn.USB adaptor It has been optimized for both microphone and earphone.external sound adapter Manufactured with the purpose of durability, this product would spend eminently long period of time with you.external stereo sound adapter This adaptor has a built- card, with which you could easily use the USB port of your PC for audio transmission.7.1 Sound Track Card The efforts and fine craftsmanship we put into the making of this product make for superior reliability