Sound effects of FX movies: Simulate the sound of movies, allowing you to enjoy the thrill of fighting. Sound and lighting effect feedback during the duel.each laser sword has 3 sets of sound effects, switching sound effects, standby (background) sound effects, spelling sound effects, waving sound effects, percussion sound effects, switching sound effects, low battery sound effectsLightsaber specifications: the handle is 29 cm, the blade is 71 cm, and the total length is 100 cm. The blade can be removed; 9W bright battery; battery capacity 2000mAh; no retractable light effect; computer USB port charging (5V / 1A)Sound effect mode: each laser sword has 3 sets of sound effects, switching sound effects, standby (background) sound effects, spelling sound effects, waving sound effects, percussion sound effects, switching sound effects, low battery sound effects, charging sound effects, real analog movie sound effects The texture gives you an immersive experience.Light effect mode: a variety of light effect modes,