Chinese internet giant Baidu has unveiled its self-designed smart hardware DuRing, a mini projector the size of a ring that can be worn on the finger, reports ictnews.az.

Made of titanium alloy, DuRing weighs 22.8 grams with an 18 mm minimum diameter. It connects to Baidu online video site through wireless technology and projects to a 50-inch screen at the largest with WXGA (1280 x 800) resolution.

The gadget, which comes in several sizes and colors, adopts Quick Charge3.0 technology for charging, saving up to 75% of charging time. It can operate for 15 hours on a single charge.