1.【Clear video quality】 3 colour lights, 10 brightness level: white, warm white and warm yellow, each has dimmable levels to cover various photographing or recording needs.  LED ring light’s temperature 3000-6000K. perfect and meets all you need. This is the best product light for Live Streaming, Zoom Meeting,  recording, photograph lighting selfie. 2.【Compatibility】 This is suitable with most smart phone all without a case, such as  phone, Samsung, LG. No battery needed. Selfie ring light can be powered by any USB power supply laptop, PC or direct socket, Even being used desk lamp. 3.【Universal Phone Holder】Compatible with most mobile phones with extendable and non-slip holders. The angle is freely adjustable, the mobile phone can be fixed both vertically and horizontally. 4.【USB power】 The USB ports can be connected to multiple devices,  e.g. with mobile power supply, computer host and laptop. 5.【Package includes】: You will get 1 x adjustable phone clip , 1x professional ring light, 1 x USB power cord, 1x stand， more convenient for video shooting, live streaming, selfie photos, filming, recording, online tutorial.