Hollyland Mars 4K Wireless Transmitter Receiver 5G SDI HDMI Video Transmission System, 4Kp30/1080p60, Support 23.98/29.97/59.94 FPS SDI Out, 450FT Los Range 66ms Latency, 4 App Monitoring (1TX+1RX)

We needed to replace our previous Hollyland transmitter and thought we would give this a try. The picture quality and stability is amazing and the new stumpy style antennae’s made us feel that the didn’t have to handle it with kid gloves in the normal day to day shooting. Most of our shooting is run and gun and we can be in several locations in one day, so the conservative battery consumption means that one set of Sony NP70 batteries easily lasts the whole day. We had a few delivery issues but the one thing we can attest to is that the Hollyland customer service is best I have experienced from a technology company - they get back to when they say they will and are very solution orientated which is an important aspect of product purchase for us as a small production unit. We have already ordered two additional pairs to upgrade our kit and the whole team love them. Can’t wait to see what they bring out next.

These really do offer great value for money. They boot up and sync to the transmitter with ease and the picture quality is excellent. There is noticeable latency, especially when using hdmi in and out, but what do you expect. There’s a lot of processing going on and that takes a small amount of time. I’m using it for a directors monitor so the slight delay isn’t really an issue. If you listen to the embedded audio then at least the lip sync remains intact too. Overall great value and I’d totally recommend.

Worked perfectly right out of the box. A huge improvement on the previous mars products, the range is much better. The fans are quiet and have caused no issues despite what some others have said.

This works well with 4K, but I can't get it to work with ProRes RAW footage (from my Nikon Z6 to a Ninja V. I did talk to support, and as I was going to send it back, I was a little underwhelmed with their response of 'it should work'. I ended up keeping it, as the Nikon is not my main camera and I had a use just to beam to a 4K screen.

It delivers what it says, although I haven't had the opportunity to test it for long distance yet. It's worth the price.

Having come from Teradek Bolt series, I can say that for the price these work as good if not better than the early 500/600 series. Maybe not ideal for AC pulling due to tiny 5ms latency, but the fact that you can stream to Rx and then ALSO everyone else iPhones/androids (4-5 devices I think?) means these are bang for buck better than bolt.

Performance is truly excellent. Just mount, turn on and go.

Having owned a previous version of this transmitter, I was excited to benefit from the upgrades on this version including the 4K capability. The new design is quite nice and the repositioned display on the side of the device is a lot more convenient for me at least.. The set up time is minimal, the Rx and Tx pairs seamlessly but if you did want to, you could switch to a more convenient channel. Build quality is decent with solid switches , buttons and ports. I'd definitely recommend

La gamme MARS 4K de Hollyland est absolument géniale dans sa catégorie de prix. J'ai utilisé ce produit de partout, en studio, dans des grandes salles, dans la rue, à la montagne, je n'ai jamais eu de perte de signal, le pairage est super simple, les menus sont faciles. En plus on se retrouve avec de l'HDMI et du SDI, que demander de plus. Si vous voulez une meilleure qualité, je vous conseille tout de même de rester sur l'HDMI, au détriment de la sécurité que vous apporte le SDI. En plus, l'appareil consomme vraiment vraiment, très peu, une petite NP-F tient facilement une demi-journée. En revanche, au niveau des points négatives, même si je n'ai pas encore été énormément limité par la portée, il ne faut pas non plus se trouver trop loin de l'appareil, sinon on risque de perdre le signal. Ce qui est très dommage également, et pour moi, ce qui est le plus gros défaut de cet appareil, c'est le nombre de connexion, on ne peut se connecter qu'à deux autres appareils Hollyland, ou bien à quatre appareils mobiles sur l'application. C'est trop peu. Hollyland à régler ce souci avec leur nouvelle gamme Pyro H. En revanche, en souci qui n'a pas été réglé, c'est la latence, pour travailler régulièrement avec les produits de DJI, Hollyland a énormément de retard sur la latence, je ne vous souhaite pas d'être premier assistant avec un produit Hollyland. En revanche, je ne sais pas ce que donne la latence sur leur nouveaux produits, je serais curieux de tester. Enfin, le plus gros point positif pour moi de la gamme, c'est le MARS M1, qui est ton écran qui se connecte directement aux émetteurs et aux récepteurs. Dans la tranche de prix dans laquelle se trouve Hollyland, l'équivalent que l'on trouve sur le marché de ce produit se trouve chez DJI, sur leur gamme SDR, mais eux ne proposent pas d'écran. C'est donc un point marqué pour Hollyland. Malgré tout cela, j'adore ce produit et pour moi c'est en indispensable aujourd'hui sur un tournage, en tant que premier assistant, on se fait quand même à latence, pour moi la plus grosse contrainte c'est vraiment la limite du nombre de connexions. Deux récepteurs maximum sur un plateau n'est pas utilisable.

Très bon achat et qualité pour ce produit. Se connecte directement.

I do Livestreaming and video production, brought this unit last week and I'm so thankful enough to have this in my hand for live stream wedding event that happen last week. Usually, my livestream is in line of sight for all my wireless transmitter and receiver, but last weekend we have to move from outdoor and indoor for the event. So, there were no room indoor to setup my system, we had to video switcher from outside close glass door, found out all my other transmitter couldn't get the video signal. I plug in the new 4k mars and it work perfectly fine without signal loss. from there I knew this was a keeper for my live video switcher. after get thing working. I have to move all my receiver to inside of the reception room for other camera to work. I use all kind of wireless video system and found this model is very fast when sync and pairing. The channel is very good it has the auto scan channel. I gave it 5 star Because it has a lot of improvement and quality to this model, 4k function for great cause I can now do cropping in my vmix switching during livestreaming. Wireless Signal and with New antenna are very stable for this price range compare to other video wireless company.

Reliable as always

very affordable for a high quality 4K transmission receiver. I bought to pair with my Hollyland monitor so I could have a wireless setup for clients to view live video. i will bring for high profile shoots where there is the budget for a video village.