915 Generation Ring Expansion Full Color Led Light Rgb Programming Developm

24 Programmable High Brightness LED . The mini phone is installed on the expansion board , which can realize the function of sound controlling light.For example , the bigger the decibel , the more LED lights will be on. Not only can -USB power supply be used , also 2 AAA batteries can be used to supply power. Even playing outdoors , there's no scruple about it. :bit expansion board is designed with blocks hole to match your block suite and find more interesting games. Programmable halo can be compatible with , you needs to weld the needles on the expansion board by yourself , and no needles and arduinoin are provided the packaging. Colour: Black material: plastic Package Contents: 1* light ring expansion board 1* fixed plate 1* battery case fixing plate 1* battery case 1* usb data line 1* fixing screws and nuts
Only the above package content, other are not included.
Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.