The power activation humming sound, battle-clash sounds and spinning and connection sounds all realistic * When you extend your double lightsaber to over 4" long, you"ll definitely feel like you"re really in the thick of battle * Create 4 cominations of lightsabers: double-bladed spinning, 2 single, single spinning lightsaber with a single, double-bladed * Lights and sounds add to the realistic action * Double blade extends to over 4"