will it work with windows 10 desktop

It lets you connect a TV with a remote signal source. If your computer, regardless of OS, outputs HDMI signals I would expect it to work. But I have not made that connection.

Can this be powered by usb port, like a usb power port on projector?

If your usb power port on projector has output of 5V and for the little bit more than 1A, I don't see the reason why not.

What is the voltage range? Does it also work up to 240V? (here at home we have 220V)

No, you would need a step down adapter.....

Does this device support 1080p 60Hz?

Yes. I have 1080/120 on the master and 1080/60 on the slave. Seems to work ok. Other reviews state the quality is reduced through this box, and I don’t notice it on my main 55”, but I also think Direct TV through ATT is far worse pircture than satalite so I may not notice due to this.

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Nyrius WS55 Wireless HDMI Video Transmitter & Receiver for Streaming HD 1080p Video & Digital Audio from A/V Receiver, Cable/Satellite Box, Blu-ray, PC to TV/Projector

Nyrius WS55 Wireless HDMI Video Transmitter & Receiver for Streaming HD 1080p Video & Digital Audio from A/V Receiver, Cable/Satellite Box, Blu-ray, PC to TV/Projector

Product ID: 77999521

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Details

Brand
Nyrius
Connectivity Technology
Bluetooth HDMI
Controller Type
Remote Control
Special Feature
WS55 Digital 1
Compatible Devices
Television
Connector Type
HDMI

📡40 ft range through walls & floors

📺True 1080p HD wireless streaming

🔄Dual HDMI output for 2 displays

Description

📡 Cut the cords, not the quality—wireless HD freedom awaits!

DUAL DISPLAY POWER - Simultaneously broadcast your content to two screens with loop-through HDMI output.
PLUG PLAY SIMPLICITY - No software, no WiFi, no hassle—just instant wireless connectivity out of the box.
UNMATCHED WIRELESS RANGE - Stream effortlessly up to 40 feet—even through walls and floors—for ultimate placement freedom.
SEAMLESS 1080 P HD STREAMING - Experience crystal-clear 3D video and immersive 5.1 channel audio without cables.
REMOTE CONTROL FROM ANYWHERE - Take full command of your devices with IR remote extender—no need to leave your seat.

The Nyrius WS55 is a wireless HDMI transmitter and receiver that streams true 1080p HD video and 5.1 digital audio up to 40 feet, even through walls. It supports dual display setups via loop-through HDMI output and includes an IR remote extender for full device control from any room. With plug-and-play installation requiring no software or WiFi, it delivers hassle-free, high-definition wireless streaming for your home entertainment.

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