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Hollyland MARS 300 PRO [Official] HDMI Loopout Wireless Video Transmission System With Antenna (Enhanced)

Marsoni M251S
Sale price$1499.50
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Get it in 3 business days with 1 day shipping. Friday, May 29
Hollyland MARS 300 PRO [Official] HDMI Loopout Wireless Video Transmission System With Antenna (Enhanced)Cooling System & Fan Speed Control Cooling holes placed on the side increases air intake and new added function to adjust the fan speed in order to control fan noise Smart Channel Scan & Firmware Update Also, HollyView APP supports easy & quick firmware updates & smart channel scans. The Hollyland Mars 300 pro will automatically scan the current environment on the receiver to find out available channels and avoid the channels with interference.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.2 ★★★★★
Based on 2062 reviews
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Product Reviews
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Verified Purchase
Dmitriy Perlin
Grantham, US
★★★★★ 5
Great mount
Really like this mount: Very versatile, no glue
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
Y
Y
Waukegan, US
★★★★★ 4
It holds the phone pretty well!
Updated review: I gave this another try and it worked, the reason was previously I was rotating the nob in the wrong direction... now it fits pretty well and stays in the installed position securely! But I'm still worried about the added pressure on the display, hopefully it works fine. Overall I think it's worth a try if you need a magnetic phone holder! (ps: I was never contacted by the manufacture, I figured out the correct way to use it so I came here to update my review) --- Original title: Doesn't fit my Model 3 display too well, and it adds pressure on it. I wouldn't recommend it Original review: I don't understand all the positive reviews of this MagSafe holder. It could work, but I find it very unstable on my Model 3 2023's display. After I fit it onto the display and tried adjusting the angles or taking off the phone, the holder tended to fall off. Also it adds pressure to the display which could technically damage it. I wouldn't recommend this.
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Reviewed in the United States on May 22, 2024
M
Verified Purchase
Marco mendoza
San Leandro, US
★★★★★ 5
👍👍👍
🥰🥰🥰
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Reviewed in the United States on December 21, 2025
H
Verified Purchase
helen
Whiting, US
★★★★★ 1
not holding up well
It was a great idea and kinda worked for few weeks.. but every time I have to jiggle a bit to get my phone off from magnet or try to adjust the angle, the whole system comes off.. and now all the supporting sponges came off.. I tried to fix and reuse but didn't last at all.. it comes off too easily from the car monitor.
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Reviewed in the United States on December 27, 2024
T
Verified Purchase
Tutu the Giant
Natrona Heights, US
★★★★★ 5
So Much Worth It!
This phone holder works so well! It is sturdy and hold on pretty tight. Very easy to put the phone on and off the holder. It even protects the screen so well with the little corner protection foam! Five out of five stars!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2024

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