HKBAYI DC5V / DC12V Wireless mini 14keys RF Digital Color RGB LED Controller for WS2811 WS2812 WS2812B LED Strip (DC 5V) RF Remote control,long distance,mini size,wire connection is simple and very easy to use With 300 kinds of patterns,which are vivid and beautiful Each controller can control up to 2048 pixels Effect: 300 kinds of variations, covering the effects of the market for all Symphony controller mode, you can program any combination of 16 and automatically play use for WS2811/WS2812 module strip lights