Yes, it has instant connection to iMac or Chromebook through a USB cable. And you can go to the company website to download the respective software. 

Yes. Please go to www.joyusing.com and click "Support - Download" to select the Software and Driver for Chromebook 

It doesn't have a built-in microphone. It uses the microphone in your computer. 

It can be adjusted to capture the size of A3, that is, 6.5” x 12.4” or 297mm×420mm. 

Yes, our device is compitable with all the leading communication apps, such as Zoom, Skype and GoToMeeting, etc. 

1. Check and see if the device is connected to the computer. 2. Use a different data cable to see if the cable is damaged.  3. Try a different computer to check if the ports are good. 

Go to www.joyusing.com and click "Support - Download" to select the Software User Manual for your document camera. 

Please click the Focus and Exposure at the right corner, and cancel the automatic focus and exposure. See the picture below. 

The mirror effect is the function from the meeting softwares, please check and see if the mirror image is adjustable in the app. 

The software download options are as follow: 1. Download from the CD came with the device.  2. Go to our website www.joyusing.com and then to "Support - Download". Please download the respective softwares according to the device models and computer systems.  3. Search Doccamera in APP Store from your Macs.