1、Easy to accomplish dim and speed adjustment 2、Owns many kinds of modes, such as static colors, jumpy changes, gradual changes, strobe, auto-play modes, etc 3、It provides 19 dynamic modes and 20 static colors 4、Powerful functions and small size, convenient to use 5、3 keys design. Auto memorizing function Description: This item is easy to accomplish dim and speed adjustment. It owns many kinds of modes, such as static colors, jumpy changes, gradual changes, strobe, auto-play modes, etc. It provides 19 dynamic modes and 20 static color. It has powerful functions and small size, which is convenient to use.  Features: Easy to accomplish dim and speed adjustment. Owns many kinds of modes, such as static colors, jumpy changes, gradual changes, strobe, auto-play modes, etc. It provides 19 dynamic modes and 20 static colors. Powerful functions and small size, convenient to use. 3 keys design. Auto memorizing function. Specification: Condition: 100% Brand New Voltage: 5-24V Product Length: Approx. 33cm / 13.0inch Product Weight: Approx. 12g Package Included: 1 * USB RGB Controller