perfect Package to Meet Your Needs: you will receive 4 pieces of strobe lights, equipped with 108 pieces of bright LED light bulbs, the quantity is enough to meet your daily using and replacement needs 2 Control Modes: our LED strobe lights feature 2 different control modes, including sound activated mode and manual mode, and it can change the lighting according to stage music, applause, cheers and more Fine Workmanship: these for party are made of quality plastic shell, with solid black, light but strong, and textured, not easy to break or deform, allowing you to use them with confidence for a long time Proper Size to Use: the small strobe lights for come with an appropriate size, measuring about 5.51 x 5.51 x 1.77 inches/ 14 x 14 x 4.5 cm, light in weight and portable, easy to carry around, will not bring much burden to you, providing you a lot of convenience Wide Range of Usage: these sound activated LED lights are applicable for parties, dancing parties, cosplay parties, masquerade, music festivals, weddings or some performing and shows, creating unforgettable memories Colour:black Material:plastic+metal Package Contents: 4 x Dance hall flash 1 x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.