1. Function: LED display, snooze, alarm clock, dual USB output, time memory, automatic dimming of the display, night light, with vibration, type-c input 2. Compatibility: compatible with and android mobile phone charging 3. Brightness: automatic adjustment of the brightness of the display screen, the stronger the ambient light, the brighter the display brightness; the weaker the ambient light, the darker the display brightness (automatically adjust according to the light and darkness of the environment, intelligent function). 4. Memory function: Built-in CR2016 button battery(just for memory using,when the external power supply is cut off, the time and settings will remain unchanged. The time will not be displayed after the external power supply is cut off, so as to avoid repeating the settings time. 5. Power supply mode: 5V1A~5V2A (not included) Colour:black Material:plastic Package Contents: 1 x clock 1 x vibrator 1 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.