Take the party with you! This amazing battery operated LED Strobe Light flashes for days - can you even party that long? The portable unit can slip easily into a knapsack or handbag so you can get the party started and dance to the beat. The flashing speed is controllable so you can step it up or slow things down, depending on the music and your mood. Indoor use Battery Type: 4 AA (sold separately) Dimensions: 2" H x 3.5" W x 5" D Imported Note: Recommended for use in covered areas.