Compatible with almost all smartphones with or without a case, suitable for iPhone HUAWEI Samsung and other brands. 360 degree rotatable, adjustable viewing whether it may be horizontal, vertical, or any angle. No battery needed, works with most devices that support USB port, like laptop, PC, power bank, USB charger, AC adapter, and etc. Easy control on cord to power on/off or switch to the lighting mode you prefer. 2-in-1 design combines the phone holder and selfie ring light together, it is a professional tool for creating live videos/recording with smartphone or computer. Perfect extra light for make-up, live streaming, lay flat, selfie photos, filming, video recording, online teaching, dark scenery vlogging etc. 180° rotation angle, allowing to find the perfect angle, and mounting up 5 phones at the same time, The Desktop Adjustable Stand extends from 32.5 to 49.5cm, letting you more flexible on live streaming. Built-in Bi-color LEDs from 3000K to 6000K and dimmable brightness ranges from 10%~100% and excellent CRI>90. You can adjust it flexibly and easily to choose whatever lighting effect you want.