3D Sound Surge has posted a review on the Evergreen RumbleFX Force Feedback headphones.

Lets start with the more mundane component of the headphones. They use a padded adjustable headband and a soft cushion ear cup in a closed format that keeps the inside in and the outside out in terms of acoustics. Something else worth noting is the earcups are mounted with a natural (back) tilt and offset from the headband center. The end result of this ergonomically designed fit is the RumbleFX headphones are quite comfortable. For what it’s worth they are a fair bit more comfortable than the cup on the Takstar force feedback headphones sold by Xitel but not quite as comfortable as the cup on the lighter, open format Sennheiser HD 525 headphones that I normally use. Because the RumbleFX headphone uses a closed instead of open format you will be less likely to disturb anyone else in the same room and it also does a better job of shutting out the outside noise compared to open format units. The trade-off is closed cup models tend to be a bit warmer for long term use. Having said that, I had no trouble wearing the RumbleFX headphones for a long time without discomfort. Closed format phones are often a bit more bass heavy than open but that turns out not to be the case with the RumbleFX phones when the force feedback is disabled.

Read more