Classic rectangular shape Bluetooth speaker, of the circular design, modeling advanced unique, stereo speaker, antimagnetic noise reduction, farewell current sound.360° surround sound quality, enjoy cinema level stereo effect at home, easy to enjoy music at home, the stereo has 2 speakers +2 holes, antimagnetic noise reduction, clearer sound quality.The use of imported digital effects, so that the sound quality restoration degree is high, as far as possible to sound, 4D stereo volume, bass more shock.With three sound modes, you can experience exciting game sound effects, enjoy the movie soundtrack at home, enjoy the ultimate music, and choose the suitable mode for you.Sound quality comparable to HIFI, easy to use, plug can be used, sound color without interference, enjoy the ultimate sound effect. The volume knob on the front makes it easier to control the volume.Need to plug the USB power cable and 3.5mm audio cable simultaneously when using.The power adapter is not included in the package.Built-in headphone jack and microphone jack on these computer speakers.Electronic devices such as cell phones that are too close to the desktop speaker may have a slight electric current. If there is no response after plugging it into the computer USB port, please make sure the:Does the USB interface of your computer work normally or not?The audio driver of the computer sound card is up to date or not?Click the “Speaker” icon in the taskbar, and make sure this speaker has been selected as your computer playback device. NOTE: Please check whether your device is equipped with the 3.5mm microphone port, Our microphone plug is 3.5mm 3 sections (TRS). If has no port, an extra adapter is needed (NOT INCLUDED) if you want to use the microphone function. If you just use the speaker function, no need to plug the microphone plug.