? USB Powered and Remote Control - No battery needed, works with most devices that support USB port, like laptop, PC, power bank,USB charger, AC adapter and etc.Remote Control that allows you to control your phone when taking pictures or recording videos, it is Android and iOS compatible. ? EASY TO ASSEMBLE- First, connect the tripod to the larger connector ,unfold the bottom of the tripod to ensure stability. Then, install the ring light on top of the tripod, tighten the screws . Final connect the base of the phone to the smaller connector and installed in the middle of the ring light. ? 10" Dimmable LED Ring Light ? Selfie ring light has 120 LED lamp beads for long life without changing bulbs, 3 colors lighting mode: white, warm yellow, and warm white. Each lighting mode has 10 adjustable brightness to choose,to take away all the unflattering shadows! ? Multi-Functions Ring Light - 2-in-1 design combines the phone holder and selfie ring light together, perfect extra light for live streaming,online teaching,make-up,selfie photos, filming,video recording,dark scenery vlogging etc.It also can be used as desktop lamp for your reading.