Thanko Japan announced its NB-Mate a USB powered five-in-one device. One you connect it to PC it functions as a speaker. It has two speakers comes with an output of 1.5W×2ch for you stereo sound. It also has a mini input for your MP3 player, Disc player etc for audio playback, the speakers can be powered via USB or AC adapter. The device doubles up with an USB hub, it has four USB 2.0 ports. Besides USB powered, this device can also be powered by 4 AA batteries and it can be automatically recharge when connected via USB or AC adapter if you’re using the rechargeable type of batteries. One more pic…

[via New Launches]