Honda Sound Sitter Aims To Calm Fussy Infants With Engine Sounds From An NSX

If you’re looking for something to soothe your fuzzy infant and turn them into a petrolhead at the same time, you’re in luck has Honda has quietly introduced the Sound Sitter in Japan.

Noticed by Engadget, the Sound Sitter is a plush two-door coupe which is designed to calm children by playing engine noises. According to the automaker, the toy was created as an experiment as they noticed engine sounds seemed to have a calming effect on infants.

As a result, the plush toy has an integrated speaker which can be remotely activated to play sounds from the Acura / Honda NSX. This seems a bit unusual, but Honda notes various studies have shown newborn babies are calmed by sounds which are similar to noises they would have heard inside their mother’s womb – such as blood flow and their beating heart. These are low frequency sounds and Honda says their cars also produce low frequency noises of 250 Hz or less.

Honda was so interested in this connection, they record 37 different vehicles to see which one produced the sound closest to those that would be heard inside the womb. Among the different models tested was a 1986 Integra, a 1987 Prelude, a 1999 S2000 and a 2018 NSX. Out of all these different models, the company determined “the engine sound of NSX is closest to the frequency that can be heard most in the womb.” Other close matches include the 2001 Acura Integra Type R and 1999 Honda S2000.

While the toy is just a prototype, a number of parents have reported their infants have stopped crying after being introduced to the toy car. This shows plenty of potential as Honda noted 75% percent of mothers are worried that their children will begin crying in public.


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  • Callanish

    Hoping Jaguar releases an F-Type V8 version of this infant toy to see if their engine noise will just scare them into stop crying.

  • Dude


  • Bash

    A Honda will make them sleep,, ha!
    My SRT will wake them up.
    And their parents.
    And the neighbors. 😉

    • flamin hot powah

      And their lawyers.

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