Compatible with most tables & desks or any staff with a plate such as bookcases or chairs. super convenient for you to create your video or doing live streaming.unifree ring light is usb powered, no battery needed. equipped with 54.5 inches (1.4m) cable, the 5v usb interfaces can be plugged in to any devices contains usb port such as laptop, mobile power etc.23 inch strong long arm that can bend to any shape, flexible arms free to adjust any angle as you like for convenient reviewing, taking photos or shooting videos.360 rotate cell phone holder width ranges up to 3.6 inch, this universal phone mount holder is compatible with almost all smart phones with or without a case. high-def video calls in a sturdy design: experience sharp, smooth video calling and live streaming in a widescreen format . adjustable light correction shows you in vibrant, natural colors. flexibility that goes beyond built-in: small, agile and adjustable, unifree ring light holder brings a whole new angle to video calling make high-definition video calls on your favorite platforms like skype. at any frames rate, video quality will be smooth, while images will crisp, colorful and contrasted. 3 brightness modes: 3 light modes, white, mixed and warm light, help you create the right effect for your videos, live broadcasts or still shots, making sure you will have higher quality shots or videos to show the world.