Efanr Portable Mini 16 LED Dimmable Light Cellphone Camera Flash Fill-in Light Pocket Spotlight Photo Video Light Lamp Speedlite For Android Smartphone and Tablets Camera (Pink) Pocket Size: 38mm x 38mm x 10mm Adjustable brightness: high/middle/low Rechargeable battery inside, no need to drain your device's battery It can be used as a simple flashlight or a small emergency lamp, taking photo is no longer an issue at night No red eye: easily have natural flash,let you take better photos it is a multi feature very small and handy speedlite.