KEN LLP started pre-sale of wireless air speaker "LEVI SOUND" that link with smartphones in crowd funding platform Green Funding.
The globe speaker has a neodymium magnet, controlled by a computer, floating from a base part and keeping balance. Furthermore, it sticks to every metal moiety by a magnet. Of course the specifications as the speaker do not have any problem. It has a full-range speaker of max power 3W and decreases a distortion and vibration by being floating in the air. The sound frequency band is 40Hz - 20KHz, coverage area is 10m, the battery is 500mAh and operates for up to eight hours. KEN LLP has already collected about five times of the aim amount of money in crowd funding and two courses that one LEVI SOUND and special bonus were combined were sold out. However, courses of 13,800yen - 128,000yen that you can buy LEVI SOUND still stay.
Crowd funding page is here
https://greenfunding.jp/lab/projects/1596
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