Self-printed guns aren't the only firearms altering the weapons landscape. Also out there: Precision rifles with high-tech scopes and auto-firing triggers, and iPhone adapters and apps that offer custom crosshairs.
Net-connected "smart buttons" from carrier Telefónica let businesses tempt customers with one-touch instant gratification. Early uses are ordering pizza, hailing cabs and requesting a package pickup.
From an emergency tablet to a handset with built-in solar charging, Kyocera shows off some of its concept devices at MWC 2015.
MrSpeakers' Ether headphone floors the Audiophiliac!
Traditionally shying away from the audio business, the South Korean electronics giant is trying to make an impact with its new wireless speakers. CNET goes deep within Samsung's research facility to see if it has what it takes.
Using an array of loudspeakers, researchers have created swirling vortices of sound that were used to manipulate microscopic particles.
Great, you splurged on a set of high-end headphones. The Plenue M music player is your next logical purchase.
Dark Knight bends his no-gun rule to get the tactical edge.
The next evolution in wireless networking holds promises of self-driving cars and movies that download in the blink of an eye. 5G is big at this year's Mobile World Congress, but don't expect it until 2020.
Traditional carriers hope to profit from the push to connect all manner of electronic devices to the Net, but a French startup just took a little wind from their sails.