Hollyland Mars 400S [Official] Wireless SDI/HDMI Video Transmitter and Receiver for DSLR Camera, 400ft Long Range 0.1s Low Latency 1080P HD Video WIFI Transmission System

Hollyland Mars 400S [Official] Wireless SDI/HDMI Video Transmitter and Receiver for DSLR Camera, 400ft Long Range 0.1s Low Latency 1080P HD Video WIFI Transmission System

Marsoni

M251S

$1449.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Hollyland Mars 400S [Official] Wireless SDI/HDMI Video Transmitter and Receiver for DSLR Camera, 400ft Long Range 0.1s Low Latency 1080P HD Video WIFI Transmission SystemTIPLE PLATFORMS MONITORING Support 1 transmitter with 2 receivers, or 1 transmitter + 1 receiver+ 4 iOS or Android smartphones and tablets. The transmission range is up to 400ft. SDI&HDMI&OLED DISPLAY SCREEN Support both SDI&HDMI on the transmitter and the receiver. Be different from Mars 300, The Mars 400S has a creative OLED screen, so you can check out all device statuses and control the system with displayed information on the screen. DUAL POWER

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We offer a 30-day return/exchange service after receiving.
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Very happy with this car mount. The magnet is plenty strong to securely hold my iPhone in its magnetic loop case. It’s plastic but it’s sturdy and fits on my Model 3’s screen perfectly. It has an adjustable height that I can mount my phone with full clearance of my steering wheel. Don’t waste your money on a metal mount, this inexpensive mount serves the need perfectly.

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Reviewed in the United States on April 22, 2026

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Anthony Jones

San Leandro, US

★★★★★ 5

Great for Tesla

Color: Black

Perfect in my Tesla. It’s sturdy and never drops my phone.

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Reviewed in the United States on May 23, 2026

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WillB

Charlottesville, US

★★★★★ 1

Mount presses on the back of the screen Too hard

Color: Black

Waste of time. Doesn’t mount well. The screen shows visible backlight stress from where the mount presses on the back of the screen Returning it same day

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Reviewed in the United States on May 13, 2026

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I Agoren

Boise, US

★★★★★ 5

Good option for FSD drivers with a thin skin

Color: Black

Works great. Holds the phone very well and can be repositioned very quickly to accommodate various driving modes like laid back and deep or focus edge of your seat with getting yelled at by FSD (not really self driving)

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Reviewed in the United States on June 1, 2026

Verified Purchase

As unique ink

Houston, US

★★★★★ 4

Easy install

Color: Black

Sometimes it falls off if you hit a bump but it’s very durable. Functions well. Magnetic strength is impeccable. Easy installation

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Reviewed in the United States on April 21, 2026