Wireless Conferencing Speaker with Expansion Mics Webcam

Omnidirectional Microphone DeploymentSecond-generation full-duplex voice calling technology, available with one digital silicon microphone and up to three wireless omni-directional microphone deployment. Each microphone pickup distance is not less than 2m. What's more, flexible movement is a good solution to the problem of far-field sound pickup. Built-in 2*4W speakerphone, 5.8G Wireless or USB 2.0 connection optional. Omni-directional microphone standby time up to 3 months, working time up to 4 hours. Equipped with 12V 1A fast charge. Small size for easy movement, USB Plug & Play. It's easy to use by abandoning traditional complex connection method. Product Description2.4G  Wireless Transmission: with stable signal, USB wireless receiver connect to PC, the maximum distance between the receiver and microphone can reach to 15 meters.Omni-directional Microphone:Full duplex OMNI-Directional MIC,with 3-4 meters pick up rangeSpeaker:In built powerful speaker, AGC provide excellent audio qualityBattery:  90H Super long standby, continues work for 12 hours.Support 1AH quick Charge.Competibility: Plug&play, competiable with Windows,MacOS,Android,LINUX Operation system.Main unitInternal auxiliary microphoneTypeDigital silicon microphoneSensitivity-26dBFSS/N ratio60dBFrequency range100Hz - 16kHzWireless transmitting power2.4G: +5dBm (Main unit connects expansion mics)5.8G: +7dBm( Main unit connects PC)Echo cancellationAdvanced echo cancellation up to 256msNoise suppression>20dBSampling rate48kHzPickup range5MTransmission modeUSB2.0/RF5.8GSpeaker powerDual Channel 5W*2Power adapterDC12V±0.2V,2ABattery3400mAH*2pcsControl modeButton control/Remote controlButton functionsPower ON/OFF, Volume+, Volume-, Microphone Mute, Speakerphone MuteStatus displayTwo color LED indicator lightsStandby time3 monthsWorking time4 hoursWork Temperature-40ºC~50ºC (Storage temperature)-10ºC~ 40ºC (Working temperature)Humidity0-95% RHL x W x H400mm×61mm×70mmWeight900gExpansion microphone (Max 3 pcs)MicrophoneTypeDigital silicon microphoneSensitivity-26dBmS/N ratio60dBFrequency range100Hz - 16kHzSampling rateRecord: 8kHzPickup range3MWireless transmission mode2.4G ISMWireless transmitting power2.4G: +5dBmTotal power0.2W  MAXCharging portUSB type-c  / Charging tray contact chargingControl modeTouch button controlButton functionsPower ON/OFF,Microphone Mute,PairingStatus displayTwo color LED indicator lightsPower adapterCharging tray DC5V±0.2V,2ABattery800 mAHStandby time6 monthsWorking time8 hoursWork Temperature-40ºC~50ºC (Storage temperature)-10ºC~ 40ºC (Working temperature)Humidity0-95% RHL x W x Hφ70x49mmWeight300gCharging trayInput voltage/current5V/2AMaximum charging mics2pcsMaximum charging current600mA/pcDimension200x100x16(mm)Weight170gInterfaceUSB type-c   /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1