Features: Mini LED Ring Light: 3 lighting modes(warm light/mixed light/cold light); 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.  With Phone Holder & Microphone Clip: 5.5cm-8.5cm adjustable phone holder fits most smartphones on the market; and the mic clip is suitable for compact microphone(diameter around 3cm).  Flexible Arms & Strong Clamp: With 3 flexible arms, you can adjust the usage angle of ring light, smartphone and microphone 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:570g/ 1.3lbs;  Package Size: 20 * 16 * 8cm/ 7.9 * 6.3 * 3.1in;  Package Weight: 687g/ 1.5lbs;   Note: The smartphone and microphone showed in the pictures are not included.   Packing List: 1 * LED Ring Light;  1 * Phone Holder;  1 * Microphone Clip