Adjustable ring light Lightly press the dimmer button to change the lighting color: warm light, cold light and natural light; Hold the button to switch the brightness from 1% to 100%. Meet all your requirements below different circumstances, press the button twice to display the SOS flash. Multifunctional Selfie Light This ring light helps to brighten your face and improve the ambient lighting for a perfect selfie. When you are in a dark environment, it can be used as an emergency light to illuminate the area. Portable and Easy to Use Product size: 84 * 84 * 28mm, LED ring light won't take up too much space in your pocket. Just clip it to the top of your smartphone or tablet to capture high quality pictures and videos for every important moment of your life Compatible with all smartphones The permitted thickness range of the clamp mouth is between 0-15 mm. This works for most phones and tablets. Like iPhone XR / iPhone XS / iPhone 8/8 Plus / Sony / Huawei and other phones, iPad and even MacBook.Specifications:Material: ABSSize: 84 * 84 * 28mmLight color: cold lightCharging voltage: 3.5VMaximum clamp thickness: 0.59 inchesscope of delivery1 x Selfie ring light1 x USB cable1 x instruction manual