?Perfect after-sales service?1-Years manufacturer's warranty, 2 months unconditional refund. Please trust our after-sales team, we do our best to make you feel the best service. If you have any questions, please check the manual or the box to contact us, we have a professional team to solve your problems within 12 hours. ?Wider Compatibility?USB speakers with the latest built-in decoder chip are compatible with Windows, macOS and Chrome OS laptops and desktop computers, as long as they have the latest audio drivers installed for the sound card. USB C to USB Adapter in the box will make the speaker work well with Type-C port only devices like Samsung phones,Macbook Air,Pro,Huawei phones or other devices. ?Volume Control&Mute Button?The three buttons on the top of the speaker are the volume up/down and mute buttons. After consulting hundreds of buyers, they unanimously agreed that the one-touch mute function is more practical than the one-touch pause function. Because pause can only pause the sound of music software, but not stop the video and other sounds. So when you urgently need to stop playing sound, just press the mute button and you can do your things without worry. ?Plug & Play?Our pc speakers are built with the latest decoder chips for 99% of the computer systems on the market, enabling plug and play.No need for driver software, No need for 3.5mm AUX cables.The single USB design avoids the hassle of cable management, allowing you to keep your desktop tidy while using as little space as possible on your desk. ?Super Sound Quality?Our laptop speakers are built with two 3-inch all-magnetic speakers, which ensures that the speakers emit stunning sound quality with sufficient cavities.The high quality cable ensures stable transmission, which avoids the jerky sound that other Bluetooth speakers bring.Please note that due to the limitations of the cavity, our sound cannot be compared to some speakers with subwoofers in terms of bass.