Charge the smartphone via ultrasound

The weakness of the Qi Wireless Charging Kit is that you have to put it in the charging cradle, because the maximum wireless distance that this standard supports is only 7mm. Although Qi v1.2 will increase the distance up to 45mm.

What the consumer really expects from wireless charging technology is that it can help them charge their batteries just as they travel in the room. That's what uBeam wants to achieve with wireless charging technology from a distance. Developed for the first time in 2011, uBeam is still very buggy and only plays the role of expressing the idea of the development team.

With the Qi standard, whether it is wireless charging, you still have to put the device on the charger

So how does uBeam work? Basically, the uBeam charging source is a thin charger that can be hung on the wall for decorating or placing anywhere in the room. This charger receives power and converts it into sound, and then transmits it to the device via ultrasound. On the back of a smartphone or tablet, you only need a small receiver to capture these sound waves and turn them back into electricity. This wireless charging technology can not cross walls like WiFi, so you will have to equip each room with a uBeam charger.

With uBeam, you can charge from a longer distance

The uBeam Development team said the first commercial product will hit the market in the next two years. However, the possibility that new technology items are being delayed during testing is not without. Meredith Perry, founder of uBeam, said that her team would release a regular consumer version and a large-scale version for businesses, restaurants, hotels ...