Hollyland MARS 400S Multi-Platform Wireless Monitoring System Introduced

September 27th, 2019
Hollyland MARS 400S Multi-Platform Wireless Monitoring System Introduced

Hollyland, the Chinese company specialized in affordable wireless data/video/audio transmission solutions, has introduced a new HDMI/SDI wireless monitoring system: the Hollyland MARS 400S. With a claimed range of 400ft (120m), this tiny wireless system can also transmit video to iOS and Android devices via an App. Let’s take a closer look at it!

Hollyland MARS 400S

In the last couple of years, the Chinese manufacturer Hollyland became very popular with affordable wireless video transmission systems like the MARS 300. The brand listened carefully to the customers’ feedback, and this new Hollyland MARS 400S system addresses a lot of the issues of the previous model.

First of all, the MARS 400S exterior casing is now made out of metal. Indeed, it should better handle the set life and be less prone to breakage. Otherwise, the Hollyland MARS 400S keeps the same compact and lightweight form factor as its predecessor. The transmitter and receiver measure only 112mm x 65mm x 23.5mm (without antennas and batteries) and weigh around 190 grams each.

Also, there is now a little OLED display on the front of the transmitter and receiver. This screen displays information about the remaining battery life: a low-battery warning indicator will display on the screen only when the battery is too low, about 30 minutes before it dies. Also, it indicates the channel you’re using, the strength of the signal, and the resolution/framerate of the signal input. Both transmitter and receiver have built-in L-series battery plates. Also, there is a USB Type-C port for future firmware updates.

HollylandMARS400S_01

Image source: Hollyland

The good news for professional filmmakers is that the Hollyland MARS 400S system now features HDMI and SDI ports on both the transmitter and receiver. You are no more limited to only HDMI, like the previous MARS 300 system. Also, you can connect your camera via SDI to the transmitter and your monitor via HDMI to the receiver, and vice-versa.

HollylandMARS400S_02

Image source: Hollyland

To transmit video, the MARS 400S uses a 5Ghz frequency band, with up to 400 feet (120m) line-of-sight range. According to Hollyland, the latency is less than 0.1 second. Below is a quick chart of all the video resolutions and framerates that are supported by the transmitter and receiver.

HollylandMARS400S_04

iOS & Android App Monitoring

One of the most exciting features of the Hollyland MARS 400S is probably its capability to connect to an iOS/Android mobile device via an App. Indeed, the MARS 400S supports up to 4 App connections while the transmitter is connected to one or none receivers.

HollylandMARS400S_03

Image source: Hollyland

In the App, three modes are available: image mode, balance mode, and speed mode. Depending on your needs, you can prioritize what type of transmission you want. For example, you can go with lower video quality or low latency, or the balance between both.

On top of the App, you can take screenshots of the scene, and even record on your mobile device. To connect your mobile device to your MARS 400S, all you have to do is download the Hollyland app, scan a QR code at the back of the transmitter, and voila!

The MARS 400S is aimed at one-man-band shooters and small crews, so I find this feature useful. Sometimes, the budget is tight, and you don’t have that much room to rent an extra monitor. Having the ability for your crew members/clients to monitor what you are doing with their smartphone can make a difference.

Pricing and Availability

The Hollyland MARS 400S is now shipping and retails for $649.00/€615.00.

What do you think of the Hollyland MARS 400S? Do you consider getting one for your kit? Let us know in the comments!

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Frank
Frank
Guest
November 16th, 2019

I bought this and cannot recommend it when shooting with audio. The fans of both TX and RX are louder than my 10 year old latop….
The app connectivity didn’t work seemless as well. I was only able to try it with one very modern android phone which didn’t work at all.

Goes back immediately.

Frank
Frank
Guest
November 18th, 2019
Reply to  Jeff Loch

For the app connectivity I found out that GPS has to be switched on on the phone to connect to the TX…
If you I this it works. Still it’s far too loud and will be returned.

Kiko
Guest
May 15th, 2020
Reply to  Frank

Hi Frank, may I have your contact info, The app has been updated with more features and good experience now, even for the fan noise, we got a new update to solve this problem, kindly join our FB group (hollyland product user group) or email [email protected], our FAE will get back to you. Thanks!

Beyond the Sun
Beyond the Sun
Guest
October 3rd, 2019

What’s the compression level? Come on guys, this is a critical question.

Rob Hilts
Rob Hilts
Guest
September 29th, 2019

I go to wonder why these are so expensive when my DJI drone sends and receives full 1080p HD video 7km away from the transmitter. If DJI made something like this with their system, Im sure it only be $200.

Jun Kai
Jun Kai
Guest
September 30th, 2019
Reply to  Rob Hilts

probably compressed video

prahlad strickland
prahlad strickland
Guest
October 2nd, 2019
Reply to  Rob Hilts

Yes, 7km away, but a highly compressed 1080p, very very impressive, but not for cinema use.

Gleb Volkov
Guest
September 27th, 2019

Is there a way to connect more than one receiver to this?
And is there a way to power off d-tap? I’m guessing some kind of a d-tap to dummy np-f shell with voltage converter contraption required?
What are the mounting options?

Gleb Volkov
Guest
September 28th, 2019
Reply to  Jeff Loch

Thanks for the info, Jeff!

Harry
Harry
Guest
October 2nd, 2019
Reply to  Gleb Volkov

It can connect with one more receiver.

Una
Guest
October 12th, 2019
Reply to  Gleb Volkov

Hello Gleb! MARS 400S can support 2 receivers at a time, and if you connect one receiver, you can connect to other 4 APP

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