Features: Plug and play: not need to install additional software, just connectings through USB interfaces to use, convenient and fast. Sound quality improvement: The external sound card is equipped with higher quality Sound chip, which can provide clearer and fullers sound effects compared to built-in sound card. Good compatibility: It usually supports multiple operating systems such as mobile phones and computers, and can be for most devices. Strong portability: easy to carry, for use when working or traveling. Multifunctionality: Integrated headphone and microphones input, convenient for simultaneous listenings and recordings using headphones, for online meetings, gaming, and music creation. Specifications: Materials: ABS+Electronics Size:15cm/5.91inch Package Includes: 1PC 3.5mm Sound Adapter note: Please allow 1-3mm error due To manual measurement. make sure you not mind before bid. Due Toy the differences between different monitors, the picture may not reflect the actual of the item. Thank you!