
Hollyland has recently introduced the Mars 400S PRO II, with a couple of interesting upgrades from its predecessor, now with lower latency and further transmission range. Let’s have a look at this video system.
Hollyland released the Mars 400s PRO in 2020 with new features and a new design. The 400s PRO II has the same features but with an improved latency of 0.07s (compared to 0.1s), and a 450ft/150m transmission range (compared to 400ft/121.9m).
Key features
Both the PRO and the PRO II have the same form factor. Other features include:
- Transmits up to 1080p60 SDI or HDMI video
- Bright OLED display
- 450ft (150m) Line of Sight Range
- 12Mbps Data Rate
- SDI & HDMI Dual Ports
- Flexible Monitoring Options
- Smart Channel Scan
- Multiple Fan Modes
- Integrated Cold Shoe

The PRO II also has a smart channel scan that automatically selects the best frequency channels on start-up. Channel scanning can also be done using the receiver or the HollyView app. This offers a visual display of signal interference levels across different frequencies, enabling quick identification of the most optimal frequency for use.

What’s in the box?
- Hollyland Mars 400S PRO II SDI/HDMI Wireless Video Transmission System
- Mars 400S PRO II Transmitter
- Hollyland Mars 400S PRO II SDI/HDMI Wireless Video Receiver
- 2 x Antenna
- DC Power Adapter
- Limited 1-Year Manufacturer Warranty
Alternatives
The Accsoon CineView HE Multi-Spectrum system transmits up to 1200ft/365.76m with a .06s latency and is currently priced at $399.
Price and availability
The Hollyland Mars 400s PRO II is available now for $599. For more information see the Hollyland website.
So, what do you think? Have you been using the previous Hollyland Mars 400s PRO version? Let us know your thoughts down below.