Connect TV screen in another room

I have a router/hub in room-a.  Laptop (lenovo X1) connected to the router and HDMI cable to the TV screen for streaming movies.

How to connect to the 2nd TV screen to the same laptop in room-b 20-30 ft away.   Currently dealing with 2nd laptop which is too much work.  

I have this device (below).  Would that help?  

https://www.startech.com/support/ST121HDMR250
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Tiras25Asked:
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viki2000Connect With a Mentor Commented:
Yes and no, not 100%.
I have Google Chromecast home.
There is a delay out of sync between PC and remote screen of Chrome cast.
You must check out the distance.
https://productforums.google.com/forum/#!topic/chromecast/mmOIRREbgm4
https://www.reddit.com/r/Chromecast/comments/38xkvd/how_far_can_my_laptop_be_from_chromecast_when/
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viki2000Commented:
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Tiras25Author Commented:
Thanks Viki.  I only have one device.  Any other way to connect the 2nd TV screen?
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viki2000Commented:
You have only the receiver. You need also the transmitter.
https://sgcdn.startech.com/005329/media/sets/ST121HDMR250_Manual/ST121HDMR250.pdf
https://www.startech.com/media/products/ST121HDMR250/PDFs/ST121HDMR250_Datasheet.pdf

Other ways that I am aware are in the link above.
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Tiras25Author Commented:
Got it.  Any other way without buying additional expensive devices?   Maybe wirelessly.  Would Chrome cast work?
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Tiras25Author Commented:
Thanks Viki
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