Portable & Fashionable Design:The battery life of the portable bluetooth speaker is rated at 10 hours, enough for one working day. A carrying case is included for safe transport. You can therefore put it in your bag and use it on the go. If the battery is empty, the connection via USB cable is an alternative choice. Therefore, it is easy to use, not only in the office, but also for home office and business trips, not only for conferencing, but also for listening to music. Easy Connectivity & Universal Compatibility:speakerphone offers Bluetooth connectivity along with a USB wired option/USB dongle, can be connected to the PC/laptop/desktop computer or smartphone/tablet in seconds. It works with most conferencing programs, including Zoom/Teams/Google Meet/Webex etc and runs on all operating systems like Windows, MacOS, and Linux. This means you can instantly transform your living room or bedroom into a home office at any time. Full Duplex & Automatic Gain Control:Full duplex audio processing technology allows multiple people to talk at the same time without missing a word. With the help of AGC technology, the volume of the voices within 3m can be adjusted automatically so the voices of all conference participants can even be understood equally well, even if they sit at different distances and speak at different volumes. Echo, Reverberation and Noise Cancellation:For crystal clear audio quality, advanced echo cancellation algorithm also suppresses reverberation and filters out ambient noise so your coworkers on the other end of the line can hear every word, even though your home is noisy in the background. This AI-based voice optimization enables clear voice pickup and sound amplification. It ensures a smoother experience for every attendee. 360° Omnidirectional Mic & Daisy Chain:NUROUM A15 conference speakerphone is built with 4 professional-level microphones that capture clearly all voices at a 360-degree angle. The conversations are picked up with a strong sound and natural bass. In addition to individual home office, the speaker mic is ideal for corporate meeting rooms with up to 10 people. By cascading 2 A15 units, conferences with even 20 participants can be supported.