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✨ Elevate your screen time with immersive sync lighting that’s as smart as your binge game! 🎬
The Fancyleds HDMI 2.1 Fancy Sync Box is a cutting-edge streaming media player syncing device designed for 70" to 95" TVs. It supports 4K at 120Hz, HDR, Dolby Vision, VRR, and ALLM, delivering ultra-low latency ambient lighting via RGBW LEDs that perfectly match on-screen colors. Compatible with all HDMI devices and equipped with a universal power adaptor, it ensures seamless, lag-free syncing for an immersive cinematic and gaming experience.






| ASIN | B0DKNCZWD1 |
| Best Sellers Rank | 1,729 in HDMI Cables |
| Brand | Fancy LEDs |
| Colour | black |
| Customer Reviews | 4.4 out of 5 stars 187 Reviews |
| Display Type | HDMI |
| Display type | HDMI |
| Included Components | Device |
| Item Dimensions L x W x H | 16.8L x 10.4W x 23.1H centimetres |
| Manufacturer | Fancyleds |
| Manufacturer Part Number | FSB1P2.1 |
| Model Number | FSB1P2.1 |
| Product dimensions | 16.8L x 10.4W x 23.1H centimetres |
| Smart Home Compatibility | Not Smart Home Compatible |
| UPC | 721678539875 |
| Unit Count | 1.0 count |
| Unit count | 1.0 count |
K**K
Fancy lights
Thank you . Love these lights
G**S
Love the lights!
Love the Fancy Sync Box. The lights look amazing, the app to contol them is great and has a very wide range of ajustment. Lights were easy to install. One thing I noticed that even I installed the lights correctly, staring from the left bottom corner, following to the top left corner, on the app lights are only corectly syncronised when i choose the opposite direction. Kind of strange but not a big deal. Also this box has only one HDMI input. Would love if it had at least two inputs.
R**D
Best TV LED system by far…
Simple to install as long as you do your homework first “you tube” Definitely recommend as the viewing experience is unbelievable and gives a great addition to anything your watching
P**L
Almost perfect
Purchased a Nanoleaf 4d LED system but within a week I realised that I should have got this instead, ordered the Fancy LEDs set in Dec 2025 but took a while for me to actually put these on my TV (6 months later!!). Took TV off the wall, removed the Nanoleaf set, wiped rear of TV with rubbing alcohol to prepare surface. The stickers for the corner pieces have a red and white piece of backing to remove, the white side is easy, the red side is quite difficult to remove, once removed stick the corner pieces to the TV and hold for a while, start attaching lights in one of the bottom corners as per the instructions and remove the backing paper to stick lights to the TV, once you get to the end, cut the lights to size (despite the instructions telling you where to cut, the indicated part isn’t actually on the light strip, apparently the instructions SHOULD tell you to cut along the fancyLeds logo which is at regular intervals along the light strip, I only found this out by looking on Reddit. Set up was easy (downloaded a software update as soon as I connected to WiFi. I have given this a four star review instead of five because every now and then, the sync feature stops working. My setup is HDMI connected as below: Apple TV box to Fancy LEDs box Fancy LEDs box to LG TV TV (eARC) to Sonos Arc ultra When I swap apps on the Apple TV, is when it sometimes stops syncing, I have also noticed that if you use a scene and then try to change back to TV sync, it also doesn’t sync at times. Despite the above, it’s still head and shoulders above the Nanoleaf and the bonus (for m)e is there’s no camera above the TV
T**T
Great
Good
K**E
Number of hdmi ports can be a problem
This item is great and the light tracking definitely adds to the feeling of immersion in the movie/game but and it is a big BUT it only has a single HDMI input. This is fine if you have a set top box and want to mess around swapping hdmi cables or want to buy an hdmi splitter 2 or 3 into 1. I have a Bravia 9 theatre system, ps5, and Bravia 8 TV so get round it by plugging the ps5 into the soundbar passthrough.
M**H
Great product but compatibility may vary
I bought this for my pc, it worked but unfortunately not for anything above 60hz on my pc (otherwise tv loses signal), this is an issue as I game at 120hz and spent the extra for hdmi 2.1 but wasn't able to utilise the full potential. They sent a firmware update to the sync box to attempt to fix however it still didn't work. They knew it would not likely work with my pc as stated in their first email, and their website does say (somewhere) that it's not entirely compatible with pc, but it doesn't say that anywhere on this Amazon listing (UK, their US site may say different as they sent a screenshot), however I felt this was not clear enough and from searching on reddit it seemed other people had made this mistake too. After some back and forth they did agree to refund me but stars off as I wish they offered a refund sooner seeing as they're aware of this issue and hope they make it clearer for pc users to avoid bad purchases in the future.
N**H
This is really amazing
I just received my package today and I’m really impressed with the colors. lights are syncing without any delay with videos. Thank you
J**N
Absolutely loving this!
What sets this apart is that it uses the feed directly from the receiver—no bulky camera stuck to the top of the TV like other brands. Setup was super easy, and my whole family is obsessed with how much bigger and more immersive it makes the TV feel. I previously had a similar model from another company, and it was just okay. This one, though, looks fantastic—clean, bright, and way more accurate with the colors. The clip I shared is from one of the best scenes in Game of Thrones (Battle of the Blackwater), and this was filmed at 2 PM with the lights on. It looks even brighter and more incredible in a dark room. If you're on the fence, this is the one to get.
J**.
An immersive experience
I know back lighting has been around for a while, but this device syncs perfectly with the content on the screen. Whether it’s sports, news, or movies, it doesn’t take away from the content on the screen. Note that the 3-port option does not provide automatic HDMI switching. Save your money and just buy this model and invest in a good quality automatic HDMI switcher. HDMI Devices -> HDMI Switcher -> Fancy Box -> TV
L**A
Mejor opcion calidad/precio
Excelente producto, muy fácil de instalar y configurar, los colores son muy precisos y el costo muy accesible en comparación a los HUE de phillips, no todas las películas lo aprovechan, seria para películas de ciencia ficción y vídeo juegos ya que es compatible con Vrr y allm para aprovechar al máximo el HDMI 2.1.
M**E
Best LED TV sync i've found!
This works perfect, very responsive and made my home theater look great! would recommend
Trustpilot
1 month ago
3 days ago