How do I set up multiple Shopify POS devices simultaneously?

[SG_PT]

Dear Community,

Need to setup a pop-up store using Shopify POS in the coming 3 days.

Is anyone available to help me, please? I am totally unexperient.

Is it possible to set 3 to 5 simultaneously payment POS  ( 3-5 x Ipad / iphones + barcode scanners + Payment POS).

Regarding barcode scanner: is  2D  Eyoyo model EY-009, compatible?  Shopify POS is not been able to recognize it. What am I doing wrong?

Payment POS: I have already MYPOS payment system. Is to compatible?  Need advice how to connect 

Do I have to print the receipt or am I able to send it  by email / mobile phone ?

I am using MOLONI for the financial management.  Is it straightforward to connect? 

I have a brother QL111NWB label printer. is it compatible to print the barcodes?

If different devices are needed, who could supply to arrive in Budapest/ Hungary,  between no later than Wednesday 15?

Thank you all for you help.

Have a nice Sunday.