Check the listing for details. WS2812B 8/16/24/35/45 Leds RGB Pixel Ring Modules USB 14key RF Controller Kit. Color: Multicolor, Condition: New. Listed at 2.17 USD. WS2812B 8/16/24/35/45Leds Pixel SP110E Controller Kit Ring Individul AddressabieDESCRIPTION Description: There is a single data line with a very timing-specific protocol. Since the protocol is very sensitive to timing, it requires a real-time microconroller such as an AVR, A rduino, PIC, mbed, etc. It cannot be used with a Linux-based microcomputer or interpreted microcontroller such as the netduino or Basic Stamp. Chip: WS2812 (built-in LED) LED:8/16/24/35/45pcs 5050 RGB full color highlighting Voltage:DC5V 17Keys-Music ControllerFeatures:RF Remote control,long distance,mini size,wire connection is simple and very easy to use;Support almost every kind of one-wire or two-wire LED-DRIVER-IC ;With 358 kinds of patterns,which are vivid and beautiful;With 12 music modes,which are vivid and beautifulWith user setting saving functionality;Brightness adjustable.Preventing reverse connection of power supply.working voltage:DC: DC5VPackage Included:1PCS 14Keys-USB LED Controller(Battery not included)