http://www.meeteasy.com.hk/2016/06/17/mvoice8000-ex-b/

Have clear conversations even when people are across a large room with the MVOICE 8000 series speakerphone. It can connect to a notebook, tablet via USB, or mobile phone via Bluetooth. The MVOICE 8000-B Bluetooth speakerphone also works great with PC-based communication software, to replace the PCs and mobile phone's speaker and microphone with outstanding audio quality. Expandable microphones provided for adapting to larger conference call situations.
 
Product Overview:

• Suitable for medium to large group conference calls
• Echo cancellation eliminates acoustic echo
• USB connection to PC for web-conferencing
• Advanced DSP technology delivers remarkably rich, crystal-clear audio
• Big built-in speaker for outstanding audio output
• 2 expandable microphones for adapting to larger conference situations
• 3 high sensitive microphones provide 360° audio pickup over 3 meters
• Noise cancellation removes ambient room noise
• Bluetooth built-in for conference calls via cellphone
• Microphones can be controlled separately to the talker for clear audio
• Built-in Lithium-ion battery for talk time over 4 hours

 
Selling Points:

Simply Plug in and Talk

Easily connect to your PC or laptop via USB, works great with PC based communication softphone applicatins i.e Skype, Zoom etc
 
Wireless Conference with Bluetooth
Support connection to mobile phone via Bluetooth, turn your mobile phone as a conference station anytime and anywhere
 
Integrate with Video Conference System
Professionally designed to work with video conference systems, provide perfect and cost-effective audio solution to your video conferences
 
Enjoy Crisp, Clear and Rich Audio
Full band frequency response and advanced CrystalSound audio processing technologies deliver remarkably rich full audio for natural, effortless conversations
 
Ultra-low Power Consumption
Works with ultra low power consumption, no worry of drawing too much power from your PC or video conference system