This is a genuine King Blade (Kinblade) light stick by Rui Fan. It was used once and then stored in a dark place. No box or instructions, but it comes with a strap. The light has been tested and confirmed to work. Batteries will be removed before shipping. Original price: 3,930 yen (tax included) Product Features: Bluetooth Tuning This feature is available through a smartphone/tablet app. Dual Memory Function This feature can be used with the light stick's controls. You can freely customize the colors and order from 15 default colors. You can save two memory patterns (+ default pattern). Hot Button This feature can be used with the light stick's controls. With the switch on the back, you can jump to your favorite color with one push. 15 Default Colors This feature can be used with the light stick's controls. The color changes each time you press the switch.