Features:【Mini LED Ring Light】 3.5inch mini ring light, features 3 lighting modes(warm light/mixed light/cold light), and each lighting mode supports 10 levels of adjustable brightness.【5V USB Powered】USB power supply, can be powered by computer, po-wer bank, or power adapter easily; The cable controller enables you to power on/off, switch lighting modes and adjust brightness levels conveniently.【With Phone Holder & Webcam Mount】 5.5cm-8.5cm adjustable phone holder fits most smartphones on the market, compatible with iPhone, Huawei, Samsung smartphones and so on; and with a mount adapter, you can use webcam with this LED ring light for online video.【Flexible Arms & Strong Clamp】 Flexible arm design, you can adjust the usage angle of ring light and smartphone freely; the strong metal clamp enables you to fix the bracket to desk steadily.【Wide Applications】Not only suitable for selfies, but also can be used for live streaming, video recording, online singing & chatting, book reading, or even use it as a keyboard light.Specifications:Power Supply: 5V USBLighting Mode: warm light, mixed light, cold lightBrightness: 10 levelsExternal Diameter: 9cm/ 3.5inInternal Diameter: 5cm/ 2inCable Length: about 1.3 meters  Phone Holder Width: 5.5cm-8.5cm/ 2.2in-3.3inClamp Width: Max. 8cm/ 3.1inItem Weight: 450g/ 15.9ozPackage Size: 19 * 15.5 * 8cm/ 7.5 * 6.1 * 3.1inPackage Weight: 584g/ 20.6ozNote:The smartphone and webcam showed in the pictures are not included.Packing List:1 * LED Ring Light1 * Phone Holder1 * Mount Adapter