China Conference Microphone Product Introduction: With the development of society, online classes, live broadcasts, and teleconferences have gradually become the norm. In particular, teleconferences can not only avoid the hardship of meeting staff but also realize the company's various work arrangements and deployment. Our USB Conference Microphone Daisy Chain is a device that can efficiently organize and implement such activities. It has four omnidirectional microphones built in, so it can achieve 360 掳 omnidirectional pickup. The collection distance of it is 5 meters (16.4 feet), so it is very suitable for a meeting room with a size of 20 square meters and supports on-site meetings of 8-10 people. Features USB Conference Microphone Daisy Chain can be connected to your personal computer, mobile phone, tablet, and other mobile devices through Bluetooth or USB, so that you can participate in professional conferences anytime and anywhere. At the same time, if you need a large conference, you can connect it with the extended microphone and expand the pickup range to 10m. (The extended microphone is sold separately.) The 5200mA large-capacity battery can provide 24 hours of talk time, more than 8 hours of reliable battery life and 90 days of standby time after being fully charged, avoiding the trouble caused by frequent charging. Its small size makes it easy to take it outdoors. Product Parameter ModelTV-M200B Meeting room20-40m2 Pickup range5 Meters Microphone Frequency Response100Hz-22KHz Built-in microphone4 Bluetooth function鈭?/span> Max output85dB Speaker Frequency Response100Hz-22KHz Full duplex鈭?/span> Noise suppression鈭?/span> Automatic gain control鈭?/span> Power supplyAC100~240V, 50-60Hz, 12W Working Temperature0掳C-50掳C (operating state) Humidity20%-85% OS SupportWindows / Android / iOS / Linux Accessories1x Conference Speakerphone ; 1x 3 Meters USB Cable ; 1x The User鈥檚 Manual; 1x Certificate of Competency Card; 1x Guarantee Card Interface1x type-B interface; 1x RJ45 network interface; 1x Line in/Line out interface Power supplyPower by USB (5v/500mA), built-in 5200mAH lithium battery; Product feature and application USB conference microphone daisy chain can be used for video conferencing, online education, digital court,ect. Compatible with most of the mainstream software such as Skype, Google Meet, Cisco, Zoom, BlueJeans, Amazon Chime, GoToMeeting, etc. Production details Product qualification Our certificate: CE, FCC, RoHS etc Deliver, shipping and serving Delivery: For sample orders, we have products in stock; same day shipping when we get the order; For purchase orders, we will ship within 3-7 working days; FAQ Q: How can we get a quote? A: Contact us with specification: such as material, design, size, shape, color, quantity, surface finishing, etc. Q: Can you help with the design? A: Yes, Simply design free, special design need to pay. Q: Where we can get products information from? A: We have TONGVEO official website, Amazon store, and alibaba store.China Conference Microphone website:http://www.conference-cameras.net/conference-microphone/