Ultra long size:This RGB(red,green,blue) 5050 type led strip lights are a pack of 2 rolls (50ft) total 100ft;With this ultra long size,you can set up the led lights in your entire room;The smart led lights strips are in multiple control modes via smart app control, 44 keys remote and controller box; You can use all ways to change led strip lights color,modes which is excellent for bedroom,ceiling,TV,kitchen,living room, apartment essentials and party decorations APP CONTROL:You can freely control the color changing lights with 16 million colors, experience the timing function, 28 Dynamic modes, you can also DIY your unique color MUSIC SYNC: The strip lights has a smart music mode, lights color will chang with the rhythm of the sound and music, sensitivity adjustable microphone. Applicable for create romantic, relaxed and party atmosphere Cuttable and Linkable: The led lights can be easily cut and linked with other strip led lights, which can be cut every 8 leds along the cutting marks, you can also customize the length of the led lights, while arrows of the lights should be faced to each other when connecting, if using solderless connect then while '+24V' should be faced to each other when connecting Multiple Scenes Available: Rgb led strip lights is a suitable house ornament, transforms your home, kitchen, ceiling, back of tv, desk, stairs, bar and more with color changing lights.