24 Results for

battery-free

Article

Battery-free flashlight among Google Science Fair winners

Teens invent a warning system for approaching ambulances, banana peel bioplastics, and flu drug modeling.

By September 24, 2013

Article

Samsung offers extended-life battery free with Galaxy Nexus

The phone maker is throwing in a free bundle with a longer-life battery and cover to protect it.

By March 27, 2012

Article

Battery-free LED flashlight recharges in 90 seconds

At $169.99, Light for Life is one of the most expensive flashlights out there, but it's also one of the greenest. It charges up in a minute and a half, gives you up to 90 minutes of light, and can be recharged more than 50,000 times.

By June 17, 2009

Article

A battery-free remote control

Prototype relies on kinetic energy.

By June 9, 2008

Article

Intel, SMS Audio team up on headphones that track your heart rate

The chipmaker continues its push into wearables with a new collaboration with rapper Curtis "50 Cent" Jackson's headphone company and a set of fitness-focused earbuds.

By August 14, 2014

Article

New devices run on Wi-Fi signals alone

Engineers at University of Washington are working on a new type of tech called "Wi-Fi backscatter" that only needs a signal from a router to power up and communicate.

By August 7, 2014

Article

Apple envisions wireless wristbands for hospital stays

The tech could be used for a disposable wristband that stores and transmits health information to your doctor's smartphone.

By August 5, 2014

Article

Wave your hand to control smart devices -- even if it's out of sight

The new "AllSee" gesture-recognition device lets you manipulate TV signals in the air using wizard-like hand movements to control your tech.

By February 28, 2014

Article

Amp up your HTC One's sound with an $8,000 phone trumpet

Embrace the analog with a 3D-printed set of phone trumpets to make your HTC One really stand out from the crowd.

By November 8, 2013

Article

Nokero launches $6 solar bulb for off-grid users

The N180-Start is designed to replace kerosene as a light source. The high-end N222 solar bulb, meanwhile, can also charge your phone.

By October 22, 2013