PTZ CAMERA CONFERENCING BLUETOOTH WIRELESS SPEAKERIt fix up the insufficiency for those products that canonly connect other communication terminals via USB cable, it added Bluetoothconnection function. It can be connected with mobile phones and othercommunication terminals via Bluetooth, it has good echo cancellation function. Itsmicrophone collection distance is up to 4 meters, suitable for small professionalconference rooms within 15 square meters and personal offices. At the same time, speakerphone is also suitable for remote interactive teaching and students' onlineassignments. It can be connected to the PC for unobstructed full-duplex voice calls, adaptive to 16 KHZ full-duplex echo cancellation, automaticallyadapted to the different voice bandwidth of audio and video products or systems, ts' sound quality is clear. lt can support the video device, VolP, UC unifiedcommunications & instant communication software, achieve convenient Internetcollaborative office