Can you explain me how the the Double PadMu works?

Our custom solution of the double configuration is obtained by joining together two single PadMu. They will communicate wireless, using our proprietary SW.

You will enjoy this solution either in portrait or in landscape mode. Excellent for pianists and organists!

One of the advantage of this solution is that you can buy initially one PadMu and only at a later time you may want to add a second device, without losing the initial investment. 

The two single devices always are independent devices each from the other

Also PadMu is the only existing solution on the market that provide such an incremental approach