CNET : We’re tracking all the latest news out of CES, and one of the buzziest drops is a knife that, well, buzzes. OK, more like vibrates.  

Last year, Seattle Ultrasonics announced the impending launch of the world’s first ultrasonic knife. This week at CES, the vibrating blade was available for testing, and I had the opportunity to get my hands on the $399 C-200 chef’s knife, which pulses over 30,000 times per second. 

I’ve tested dozens of chef’s knives over the years, but never anything like this. Here’s the skinny on this fascinating new kitchen gadget and what it’s like to slice with a buzzing blade.

With the push of a button, this knife starts vibrating over 30,000 times per second. 

The knife’s tremendously fast vibrations helps it cut through squishy tomatoes and dense potatoes without using as much pressure. The micro-buzzing also helps release food from the knife, so you’re not scraping slices off with your fingers — a dangerous affair, to be certain.