










🚂 Elevate playtime with the smart train set that keeps kids—and parents—on track!
The BRIO World Smart Tech Sound Action Tunnel Train Set is a 37-piece battery-powered wooden railway designed for children aged 3 and up. Featuring a Record & Play Engine that interacts with multiple action tunnels, this FSC-certified set encourages spatial awareness and fine motor skills. Its modular design allows expansion with other BRIO accessories, while rigorous safety testing ensures durable, worry-free play.












| ASIN | B0861X1S9Q |
| Assembly Required | No |
| Batteries | 2 AAA batteries required. |
| Batteries Required? | Yes |
| Batteries included? | No |
| Best Sellers Rank | 93,716 in Toys & Games ( See Top 100 in Toys & Games ) 269 in Kids' Play Trains & Trams |
| Colour | Red |
| Customer Reviews | 3.9 3.9 out of 5 stars (298) |
| Date First Available | 21 Jun. 2020 |
| Educational Objective(s) | Spatial Awareness, Fine Motor Skills |
| Item model number | 33972 |
| Language | Czech, Danish, Dutch, English, Finnish, French, German, Italian, Japanese, Norwegian, Polish, Portuguese, Slovak, Spanish, Swedish |
| Manufacturer recommended age | 3 years and up |
| Material Composition | Wood & Plastic |
| Material Type(s) | Wood |
| Number of Game Players | 1+ |
| Number of pieces | 37 |
| Product Dimensions | 60 x 15 x 39 cm; 1.78 kg |
| Release date | 1 Sept. 2020 |
| Remote Control Included? | No |
| Scale | HO |
| Track Width/Gauge | Narrow Gauge |
| tech_spec_battery_description_toys | 2 AAA batteries |
A**R
Glad I chose to ignore the bad reviews
The smart tech train set is exactly as I hoped. It works for about a day of light play on a set of normal batteries. I would say that might be under powered but seen as the normal battery powered trains far exceed expectations I think this one is closer to expected. It works great and for one month it has only missed a smart tunnel signal once. I thought by the reviews that these might be poor and hit and miss with the signals but they work fine until the battery is low and the train turns the receiver off and turns it's lights to red, which is after hours of play. Maybe if it was going constantly it might be a few hours. A pack of loads of normal batteries is cheap and every parent will be familiar with how many batteries get used up by their toys. I will say I have not tested rechargeable batteries but take it from what Brio say that they are no good for this due to the power needed so avoid rechargeable batteries. I am so glad I got this our son loves it.
M**E
Brio Do It Again!
We bought this for our grandson's 2nd birthday and it didnt take him long to work out the way it worked. He absolutely loves it and the best thing is we can add different things to keen his interest. Great product well done Brio!
V**I
Train does not work at all
I bought this for my kid's Christmas present earlier and of course did not check all function when item arrived as we didn't open the box, it turns out after install the batteries, the trains flash and then no response at all, only for certain angle light would flash when closing the cover, looks like connection problems from the cover to battery, so we are unable to access smart tech feature at all! As I bought it over a month and unable to return or exchange. Very disappointing for the product and completely waste of money .
J**R
Perfect for train lovers
Purchased this for my grandsons 3rd birthday and he was over the moon he loves his brio trains, track and tunnels. He lived recoding his voice to play back when the train when by the bridge for that option he also liked that the train went backwards. Hours of fun ahead
R**D
Smart tunnels don’t work after first use!!!
Nice train set bought for my 2year old After first use the action tunnels no longer respond as the train is passing through what’s all this about brio?! Put brand new batteries in them (1.5v) as stated on the instructions I have read previous reviews and there seems to me that everyone is having the same issue I have ordered ‘high capacity’ aaa batteries not convinced this will make a difference. The train and it’s software clearly needs looking at or updating
K**Z
Christmas present
This has been a fantastic present. So entertaining to my 2 1/2 year old grandson who enjoys moving the tunnels around and changing direction Of the train. Lovely sounds. Highly recommended!
S**Z
Fantastic toy
My 5 year old loved it
M**B
High Battery Consumption
Had the same issue with the action tunnels not working. Brio customer support reply below. Worked fine after replacing batteries but suspect they won’t last long again in order for all functions to work correctly. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - The Smart Tech and Smart Tech Sound products require high capacity batteries to enable the functions to work efficiently. We recommend you use high capacity 'alkaline' batteries according to the voltage specified in the battery instructions. We believe, alkaline batteries, will always outperform any re-chargeable ones. If the batteries are weak, or run low, the Radio-Frequency Identification (RFID) reader in the engine might miss a chip in a tunnel or destination. The Engine's RFID reader needs to be in close proximity to read the chips in the tunnels, so if any tunnels are placed above the surface, you will need to raise the level of the engine for it to work. The Smart Tech and Smart Tech Sound products require high capacity batteries to enable the functions to work efficiently. We recommend you use high capacity 'alkaline' batteries according to the voltage specified in the battery instructions. We believe, alkaline batteries, will always outperform any re-chargeable ones. If the batteries are weak, or run low, the Radio-Frequency Identification (RFID) reader in the engine might miss a chip in a tunnel or destination. The Engine's RFID reader needs to be in close proximity to read the chips in the tunnels, so if any tunnels are placed above the surface, you will need to raise the level of the engine for it to work.
C**N
I miei figli non smettono di giocarci!!! Bellissimo!!!
C**7
Super ! De qualité et la loco monte les pentes tranquillement ! L’application mobile est nulle car on passe déjà pas mal de temps à déchiffrer le fonctionnement ! Ensuite, le téléchargement des sons met un bail! Enfin, on a pas tous les arrêts forcément dans la boite donc, ça insiste à acheter plus de composants…. Le gamin est trop petit (3-4 ans) pour commander la loco avec la tablette ou le portable… on peut commander les vitesses (avant arrière) et les lumières.. Dans l’ensemble, c’est un très bon jouet! Vu le prix, y a intérêt également !
T**M
Ich bin begeistert von dem BRIO World 33972 Smart Tech Sound Action Tunnel Reisezug Set und vergebe daher verdiente fünf Sterne! Dieses Set hat nicht nur einen elektrischen Zug, sondern bietet auch eine Fülle von Sound- und Action-Effekten, die das Spielerlebnis auf ein neues Level heben. Die Interaktivität des Zuges, der durch Tunnels fährt und dabei Sound- und Action-Effekte auslöst, ist faszinierend. Die Möglichkeit, das Set auch über eine Smart Tech App zu steuern, erweitert die Spielmöglichkeiten zusätzlich. Dies macht das Spielen nicht nur unterhaltsam, sondern auch länger spannend. Das Set enthält reichlich Zubehör, was die Erstellung verschiedener Szenarien und Geschichten ermöglicht. Die Kombination aus hochwertiger Verarbeitung, innovativer Technologie und umfangreichem Zubehör macht das BRIO Smart Tech Sound Action Tunnel Reisezug Set zu einer herausragenden Ergänzung für die BRIO World. Fünf Sterne für ein beeindruckendes Spielerlebnis!
A**R
My son like this
K**E
Easy to assemble but the smart tunnels simply do not work which is disappointing since this was the main reason we went for a this set. We’ve searched high and low online and on the Brio website and there are no trouble shooting or work arounds. As a train set it is great but the smart tech does not work. Disappointing especially for this price and for a product from such a highly respected company.
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5 days ago
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