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, power 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 USB Lighting Mode: warm light, mixed light, cold light Brightness: 10 levels External Diameter: 9cm/ 3.5in Internal Diameter: 5cm/ 2in Cable Length: about 1.3 meters Phone Holder Width: 5.5cm-8.5cm/ 2.2in-3.3in Clamp Width: Max. 8cm/ 3.1in Item Weight: 450g/ 15.9oz Package Size: 19 * 15.5 * 8cm/ 7.5 * 6.1 * 3.1in Package Weight: 584g/ 20.6oz Note: The smartphone and webcam showed in the pictures are not included. Packing List: 1 * LED Ring Light 1 * Phone Holder 1 * Mount Adapter