Crystal Clear Sound Quality and Smart Algorithm Support: The bluetooth speaker is built with a built-in core. The algorithm of the USB speaker will automatically improve your voice in real time smoothly and reduce annoying background noises such as keystrokes and book flipping sound. The strong noise reduction function brings you and your meeting partners a better communication experience.Omni-directional coverage for conferences: Built-in microphone enables omnidirectional voice pickup. Any voice of conference participants will be instantly transformed, 15-level volume adjustment ensures that all participants can be heard. The 4-meter (13-foot) voice sensor is ideally suited to the needs of small to medium-sized online conference meetings and online courses.Strong Compatibility for Home Office: The conference speaker can be connected via bluetooth to mobile phone, or USB cable and dongle (included) for your computer, laptop connected, it also supports multi connection , up to 1 USB and 2 bluetooth devices connected to at the same time, the speaker is compatible with iOS, Android system and all kinds of major online conferencing platforms.Plug & Play Easy Use: 6 large sensitive touch sensing buttons make bluetooth speaker easy to use, no need to install any app or driver, no more worry for instant emergency conference call in noisy environment , even when you need speakerphone in the car, just use this speakerphone to take the meeting call.DESIGNED FOR FASHION AND PORTABLE: The bluetooth speaker is designed in black round shape with LED lights, trendy look for business occasions, light weight (200g / 0.44 pounds) for you to carry easily outside. Rechargeable design and 9 hour talk time increase the efficiency of your meetings. The call speaker also comes with a soft travel bag.