Yamaha has recently announced its latest NX-U10 USB power supply stereo sound miniature Speaker System NX-U10 in Korean market. It is World’s first 20 Watt speaker system. The speaker system is available at 180,000 Yuan. It delivers powerful Output and High Sound Quality with its PowerStorage™ Circuit and SR-Bass (Swing Radiator Bass™) Technology. It is compatible with Many Different Devices. It can use 3 Different Power Sources and is very light and compact for Easy Portability.