Hollyland Mars 300 Pro Announced

Today Hollyland has announced a new addition to their wireless monitoring lineup – here is the press release they’ve sent us.

Hollyland Technology has been very active in the filmmaking industry in recent years, especially with their introduction of entry-level wireless transmitters and wireless intercom systems to the industry. After  MARS 300, which appeared to be the first prosumer wireless transmitter in the market, they continued with product launches of the MARS 400S series and MARS X prosumer wireless transmitters,  MARS T1000 prosumer wireless intercom system, and along with their professional gear release of COSMO M7and SYSCOM 421. And now, the MARS 300 PRO is here!

From the name MARS 300 PRO, it is pronounced that this is an updated product of the once-popular product MARS 300. Most people would probably wonder what their differences are. Here is a comparison sheet between these two products.

Range 300f 400ft 300ft 300ft
Lowest Latency 0.1s 0.1s 0.07s 0.08s
SDI No Yes No No
OLED Screen No Yes Yes Yes
Channel Scan No Yes (On RX) Yes (On App) Yes (App+RX)
APP Monitoring No Yes Yes Yes
TX Weight 186g 192g 112g Standard: 136g


Enhanced: 172.5g

RX Weight 186g 189g / 128.5g
TX Size 105*62*22mm 50*50*18mm Standard: 110*61*21mm


Enhanced: 106*61*21.8mm

RX Size / 110*62*21
Power Options L-series batteries and DC adaptor L-series batteries and DC adaptor L-series batteries and Type-C USB L-series batteries and Type-C USB
Firmware Update Yes Yes (Type-C) Yes (on App) Yes, (Type-C + App)
Version Options No No No Standard version;



Enhanced version;


Single transmitter version


MARS 300 PRO has a hassle-free wireless video and audio transmission range over 300ft with a clean line of sight (LOS) and with 0.08s lowest achievable ultra-low latency. It has eight frequency channel options that can be switched to avoid interference and to ensure a stable wireless transmission just like other transmitters in their MARS product line.


One of the most stand-out features is the mobile App real-time monitoring. When the receiver is connected to an external monitor on a regular setup, two more mobile devices can be connected to the transmitter via their HollyView monitoring App that people can find in Google Play and iOS App Store. The transmitter can also be used alone, which would allow the system to connect up to three mobile devices monitoring.

There are two HDMI outputs on the receiver while the transmitter comes with an HDMI input and an HDMI loopout that is essential for people who like to build cinematic rigs with mirrorless or other small-budget cameras and need an on-camera external monitor.

The App itself supports pro monitor features, such as waveform, focus peaking, zebra, zoom, 3D luts, screen recording, and screenshots that people can make simple notes and share them with others, etc.

The following is a typical setup for the application of the MARS 300 PRO wireless transmission system.


A 3-in-1 thumbwheel switch menu is added to MARS 300 PRO together with a side OLED screen with easy access to the device’s power status, channel scan result, video input, channel number, etc., so now people don’t have to worry about having their screen blocked when they mount their systems horizontally on the camera.

The downside of having a built-in fan is the fan noise. The solution Hollyland comes up with is the ability to adjust the fan speed in order to have the fan noise under control. Regular speed to keep the fan running at its own pace, or low speed for quiet mode when one sets a microphone next to the transmitter.

MARS 300 PRO also comes with channel scan on both the receiver and the App, so people can easily identify the best channel to use on a shooting location ahead of time, or anytime. Hollyland also puts the firmware upgrade to both the device and their HollyView App that makes it less-hassle when it comes to system updates.

People also have different powering options for MARS 300 PRO. It supports 5-12V wide voltage power supply, including various L-series batteries, different power banks, and Type-C charging.


MARS 300 PRO also comes with two different versions,

  1. the STANDARD version
  2. the ENHANCED version

Built-in antennas are introduced to MARS 300 PRO for easy setup, efficient shooting, and different shooting applications. Both versions come with receivers with built-in antennas. The transmitter is also with built-in antennas for the standard version, while external antennas are used on the transmitter for the enhanced version. The only difference between these two versions is the antennas, namely, the ability to avoid interference for complex Wi-Fi environments.

Besides these two packing options, they have also added the single transmitter packing as the third purchasing option, which means now, people don’t have to go for a full transmitter and receiver set if they just need the App monitoring feature plus the on-camera external monitor connection option.

As for their prices, Hollyland does another excellent job with their down-to-earth pricing policy as they always do for their MARS series product line. MARS 300 PRO will retail for 449 USD for the Standard Version, 469 USD for the Enhanced Version, and 199 USD for the single transmitter version (TX from the Standard Version).

It is confirmed that Hollyland has already started the mass production for the product. The first batch of supply will be right on the release date, July 25th, 2020. The exact availability in different areas may vary. If you are interested in getting one, go and check that out with their local dealers listed on their website. With the pre-orders going on right now and Hollyland’s efforts to ship the products out, people should be able to get their hands on them soon.

About Hollyland Technology

Shenzhen Hollyland Technology Co., Ltd., often referred to as Hollyland or Hollyland Technology, is a technology company that focuses on wireless video transmission and wireless intercom solutions. Currently, it has these THREE categories of wireless products

  1. Prosumer Level – MARS SERIES: MARS X, MARS 400S, MARS 400, MARS 300, and MARS T1000 (Wireless Intercom)
  2. Professional Level – COSMO 600, COSMO 1000PLUS, COSMO 2000, and the brand-new 7-inch 1500 Nit High Brightness Touchscreen Wireless Monitor – COSMO M7
  3. Systems Integration Level – SYSCOM 1000T (Wireless Intercom), SYSCOM 3000, and the new SYSCOM 421, a four-transmitter-single-receiver product.

The company aims to provide all our customers with the most economical and efficient wireless solutions and services. As far as we can see, Hollyland has been delivering what it has promised with their quality and affordable products in recent years, and their passion and determination to better serve the filmmaking industry.

Where to buy: https://www.hollyland-tech.com/where-to-buy/

Facebook: https://www.facebook.com/HollylandTech

Instagram: https://www.instagram.com/hollylandtech/

Twitter: https://twitter.com/Hollyland_Tech

YouTube: https://www.youtube.com/c/HollylandTechnology

LinkedIn: https://www.linkedin.com/company/shenzhen-hollyland-technology-co-ltd/?viewAsMember=true

Get in touch with Hollyland: https://www.hollyland-tech.com/contact/

Hollyland Facebook User Group: https://www.facebook.com/groups/hollylandtech/


SOURCE Hollyland Tech

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