New shorts and sleeping bags make yourself a "power"

According to the British Daily Mail, people attending holiday parties outdoors no longer have to worry about their mobile phones being unable to charge. At present, Vodafone and the University of Southampton have developed a mobile phone device that can obtain body heat throug

How to identify 4K TV?

Recently, 4K TVs have gradually entered the living room of ordinary consumers. The competitive atmosphere of various brand terminals has become more and more intense. Industry experts predict that 4K living room TVs will reach a high market share of more than 40% in this year's Nationa

Cadillac ELR external light source all use LED

Recently, GM announced that its external light source of Cadillac ELR uses LED, which will be the world's first electric vehicle that uses LED as its light source. This time Cadillac ELR will use all LEDs for external lighting, including the main light source for the headlights. Although the n