Features: Dual Mini LED Ring Light: dual ring light design, features 3 lighting modes(warm light/mixed light/cold light), and each lighting mode supports 10 levels of adjustable brightness. 5V USB Powered: With USB power cable(1.3M), the LED ring light can be powered by computer, power bank, or power adapter easily, very convenient to use. Adjustable Phone Holder: 5.5cm-8.5cm adjustable phone holder fits most smartphones on the market, compatible with iPhone, Huawei, xiaomi, Samsung smartphones and so on. Flexible Arms & Strong Clamp: With 3 flexible arms, 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:660g/ 1.5lbs Package Size: 20 * 16 * 8cm/ 7.9 * 6.3 * 3.1in Package Weight: 760g/ 1.7lbs Note: The smartphone showed in the pictures are not included. Packing List: 1 * LED Ring Light 1 * Phone Holder