[After-sales Service ]-When you get the VOTNTUT laptop speaker, you will get a quick start guide and our friendly 6-month worry-free replacement service, as well as our lifetime customer service, which makes your purchase absolutely risk-free and satisfied. [Wider Compatibility] Our wired computer speakers come with 3.5mm audio interface which are compatible with desktops, PCs, laptops, Mac, tablets, phones, projectors, monitors, PS4,MP3 and so on.For some laptops wih only type-c ports like Mac Air,Pro, we specially prepare the usb-c to usb adapter in the box.Then you can make the speaker powered by your computer, No need another power source. [Plug and Play] Our gaming speakers are directly connected to the USB port and 3.5mm audio port of the PC.No need of drivers or software and powered by USB cable ,we avoid the trouble of charging and offer the best experience for the green hand. [Save the Desk Room] The low-profile integrated speaker design saves more room under the computer screen. Free up desk space,reduce cable clutter and make your desktop more tidy.Volume knob on the top makes it easier to control the volume. [Stereo and Noiseless] This desktop speaker uses upgraded 6W technology and adds 2 bass diaphragms to fill the strong sound of super bass. By using avoid-magnetic technology and suppressing static and other noise, our USB speakers provide you with enjoyable stereo experience when you enjoying indoor movies, videos, music and games.