Tech Marvels Shine at MWC

Tech companies showcased countless connected gadgets at the world's biggest wireless telecom fair, the four-day Mobile World Congress in Barcelona.

US firm Alef Aeronautics displayed to the public for the first time the working model of what it says is the world’s first real flying car.

The electric-powered car has received special airworthiness certification from the US Federal Aviation Administration (FAA).

The current prototype can transport two people a distance of up to around 170 kilometers and the company expects to start production of a final version at the end of 2025.

The company has already received nearly 3,000 pre-orders for the car, which sells for $300,000.

Chinese firm Tecno Mobile showed off a robotic dog inspired by the German Shepherd which uses AI and powerful sensors to understand voice commands and perform lifelike actions such as bowing, shaking hands and climbing stairs.

The robot –- dubbed the "Dynamic 1" -- can be controlled by smartphone apps as well, and it aims to provide the "joy of pet ownership" without the hassles.

Chinese manufacturer Lenovo presented a prototype of a laptop with a 17.3-inch transparent glass screen which offers "a completely borderless and see-through display experience".

Instead of a traditional keyboard, it has a touch surface where keys can be projected or you can use a special pen to draw on the screen. The company has not announced a release date for the product.

The screen's transparency can be adjusted so that not everyone who passes by can always see what you are doing.

With its cloth body, floral blouse and brown hair, Hyodol has all the looks of a children's doll. But Hyodol -- made by a South Korean company of the same name -- is aimed at seniors.

Packed with sensors and AI-power microprocessors, it can play songs, remind seniors with a voice message to take their medicine.