TEVO-NA200B Series USB Bluetooth Conference Speaker Wireless Mic

Speaker features Speaker mute button: switch the speaker Volume up/down key: adjust the volume to increase or decrease Off-hook Button: when there is a Skype for business call, go off-hook to enter the conversation state Hang up Button: Hang up the Skype for business call or exit the call Power Button: switch power button Bluetooth Button: Bluetooth connect/disconnect Speech technical parameters Deep Echo Cancellation (AEC): Full-duplex echo cancellation depth can be Up to 65dB or more Echo length: ?500ms Two-way noise compression (NC): noise compression reaches 18dB Smart microphone automatic direction finding technology (EMI) Automatic gain control technology (AGC) Audio parameters Microphone frequency response: 100Hz-22KHz Speaker frequency response: 100Hz-22KHz Built-in microphone pickup range: 5 meters, 360 degree full range Speaker volume: up to 85db Network and interface 1x type-B interface 1x RJ45 network interface 1x Line in/Line out interface Use environment and specifications Reverberation time: <0.5 seconds Noise level: <-48 dBA Power supply: AC100~240V, 50-60Hz, 12W Working temperature: 0°C-50°C (operating state) Humidity: 20%-85% Safety standard: CE Mark (LVD & EMC directive ); RoHS Operation System window7/8/10, Mac OS, Android or IOS Software compatibility PolyCom, Blue Jeans, Cisco, Vmix, GoToMeeting, Radvision, SeeVogh, WebEx, Easy meeting, Vidtel and working with Microsoft Lync Software, and ZOOM.US, SKYPE, VIDYO etc. Package&Warranty Dimension: 152mm*152mm*40.5mm Net weight: 0.308kg Gross weight: 0.61kg What's in the box? 1x Conference Speakerphone 1x Extension Microphone 1x 3 Meters USB Cable 1x 5 Meters RJ45 Cable 1x The User's Manual 1x Certificate of Competency Card 1x Guarantee Card