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The Mars 400S PRO SDI/HDMI Wireless Video Transmission System can transmit audio and video wirelessly for up to 400 feet.
The Mars 400S PRO can be powered using a 5-12V wide voltage power supply, a Type-C charging option, various L-Series batteries, and 6-16V DC power options.
Yes, the Mars 400S PRO offers a direct video output for live streaming, eliminating the need for further encryption and decryption via a video capture device.
The Mars 400S PRO supports real-time monitoring on up to 4 phones or tablets.
You can easily update the firmware of the Mars 400S PRO via the HollyView APP.
Review Summary
2024-12-03T09:15:46
This is the perfect purchase if someone nearby needs to see what you are shooting. They don't have to sit or stand right behind you anymore! Also perfect if you have a second shooter and they need to see what you're doing, so they can get a different composition. This receiver/transmitter set contains one AC power supply, so you need to have at least one Sony NP battery (or another AC power supply).
DAVE H.
2024-04-05T05:07:21
I use this for indoor events and use this on my 2nd or 3rd camcorder that is on wheels (tripod on wheels) for capturing different angles.. It works great for large auditoriums and I always kept the receiver and transmitter in line of sight. I have not tested this across walls but, the range I get is really good. I have used it in event halls where the receiver and transmitter have been placed over 300 ft away. I primarily use this for mixing for live-streaming
Krishnakumar V.
2023-11-10T05:32:05
The house I am building.
Paul G.
2023-11-10T05:28:02
So great I am building a house for them to live in!! I have a photo to share. No place to put it.
PAUL G.
2023-03-17T07:30:49
I have used this system to livestream baseball, basketball & cross-country events. With the addition of enhanced antennas, I get well beyond its rated distance specs. This system has performed very welI for me. I purchased an open box unit on Adorama for less than $400 and it looks like a new unit. I have 2 of these systems.
JIM M.
2023-02-03T12:37:15
Works well, If your going thru a fast speed , say car chasing scene I would recommend mounting the receiver closer to the source
JESSE R.
2022-12-07T12:17:30
Quick shipping and they work better than expected. Although I will never need to go further than 400ft, these got me closer to 600ft.
TERRELL W.
2022-03-29T08:49:13
Super reliable in long distances! The latency has decreased from my 300 Pro.
MARCELO M.
2022-03-20T08:29:32
A must have for DP's... sometimes the signal drops, but not often enough to be a problem... worst case, just turn off then on. Works right out of the box, just attach the antennas
Felix M.
2022-03-09T07:46:10
This are nice for the price but the plastic mounting shoe all ready brook
CRAIG B.
2022-02-09T07:58:25
Love these transmitters. I use them for reference monitoring on on Sumo 19. It?s only streams in 1080 FYI.
STEVEN S.
2021-05-27T08:11:41
Overall I think this is a great unit. I have 2 receivers and it?s a god send to not have to run cables all over auditoriums. Pros - Convenience, They work through concrete walls. Cons - No loop out on transmitter / Delay is just noticeable enough to be an issue for discerning ears.
jonathan S.
2021-05-13T13:07:26
I love it. It works great
Brandon w.
2021-04-05T10:03:10
Super great unit. Latency is really not that bad especially if you are using SDI. There is slight latency via HDMI and that is manageable. Overall great product that I would definitely buy again. If you want to keep client/Director from breathing down your neck to look at picture on camera - this is the product for you!
NATHAN M.
2021-03-23T01:39:33
It works like a dream!
EZEKIEL B.
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400' (121.92m) (Line-of-Sight)
300' (91.4m) (Line-of-Sight)
20 MHz
US: 5 GHz
0.08 sec
< 21 dBm
-80 dBm
Uncompressed
2x RP-SMA Male
2x RP-SMA Male
1x BNC (3G-SDI / HD-SDI) Input
1x HDMI Input
1x BNC (3G-SDI) Output
1x HDMI Output
1x USB Type-C
1x USB Type-C
HDMI/SDI
SDI/BNC:
1080p at 23.98, 24, 25, 29.97, 30, 50, 59.94, 60 fps
1080i at 50, 59.94, 60 fps
1080PsF at 23.98, 24, 25 fps
720p at 50, 59.94, 60 fps
HDMI:
1080p at 23.98, 24, 25, 29.97, 30, 50, 59.94, 60 fps
1080i at 50, 59.94, 60 fps
720p at 50, 59.94, 60 fps
576p at 50 fps
480p at 60 fps
OLED
OLED
None
None
1x Sony L-Series / NP-F Type
1x Sony L-Series / NP-F Type
1x Barrel (6 to 16 VDC up to 2 A) Input
1x USB Type-C (5 VDC up to 2 A) Input
1x Barrel (6 to 16 VDC up to 2 A) Input
1x USB Type-C (5 VDC up to 2 A) Input
Power Supply: 6 to 16 VDC (11 W)
Power Supply: 6 to 16 VDC (7 W)
1 x 1/4"-20 Female
1 x Cold Shoe
1x 1/4"-20 Female
1x Cold Shoe
Sony NP-F Type Battery (Not Included)
Required, not included
Lithium-Ion
1
Non-universal
Transmitter: 4.3 x 2.8 x 1.32" (11 x 7.2 x 3.35cm)
Receiver: 4.3 x 2.8 x 1.32" (11 x 7.2 x 3.35cm)
Transmitter: 0.5 lbs (206g)
Receiver: 0.5 lbs (206g)







You need this! No question.
By NATHAN M.
Super great unit. Latency is really not that bad especially if you are using SDI. There is slight latency via HDMI and that is manageable. Overall great product that I would definitely buy again. If you want to keep client/Director from breathing down your neck to look at picture on camera - this is the product for you!
Get This if Someone Needs to See What You're Doing!
By DAVE H.
This is the perfect purchase if someone nearby needs to see what you are shooting. They don't have to sit or stand right behind you anymore! Also perfect if you have a second shooter and they need to see what you're doing, so they can get a different composition. This receiver/transmitter set contains one AC power supply, so you need to have at least one Sony NP battery (or another AC power supply).
Take your video production to the next level with the Mars 400S PRO SDI/HDMI Wireless Video Transmission System. This advanced system, featuring a sleek industrial design, offers a lower gravity center for increased stability and a convenient installation process. Its innovative transverse design, coupled with an integrated cold shoe, ensures a secure and reliable setup.
Experience ultra-fast performance with a low latency of just 0.08 seconds, ensuring real-time, reliable wireless audio and video transmission over a range of up to 400 feet. This system supports both SDI and HDMI inputs on the transmitter (TX) and SDI and HDMI outputs on the receiver (RX), offering versatile connectivity options for your professional video equipment.
The Mars 400S PRO offers multiple fan modes, including off, low speed, and auto, catering to different applications and enhancing your shooting experiences. It also provides a direct video output for live streaming, eliminating the need for further encryption and decryption via a video capture device.
This system is equipped with an optimized monitoring feed and multiple monitoring options, including waveform, focus peaking, zebra, zoom in/out, and 3D Luts. It supports real-time monitoring on up to 4 phones or tablets, offering professional monitor features for a comprehensive view of your production.
Powering the Mars 400S PRO is flexible, with a 5-12V wide voltage power supply and a Type-C charging option. It also supports various L-Series batteries and 6-16V DC power options. The system's channel scan and firmware update features are easily accessible via the HollyView APP, ensuring optimal performance and easy maintenance.
Please note that a Sony NP-F type battery is not included with this system. With the Mars 400S PRO SDI/HDMI Wireless Video Transmission System, you'll have the tools to create professional-grade video content with ease.