1, Multi-function: Luminous, alarm, WR30M waterproof, hourly chime function, round the time in seconds, week and date display, 12 or 24 hour system. 2, Seven backlight colors: Using imported LED color lights, you can clearly see the night time by pressing the backlight button. Dark blue, green, red, sky blue, orange, pink, purple, these seven backlight colors can be adjusted when you press and hold the backlight button in the upper left corner for 3 seconds, which can satisfy childrenand 39 s curiosity. 3, Boysand 39 watches with high-quality materials: Digital movement, providing precise and accurate timing. The bright backlight helps you check the time at any time. Hard plexiglas protects you from daily light scratches. 4, Appearence design: High-quality plastic case, PU plastic strap, side texture buttons, easy to adjust the time, light and drop resistant, environmentally friendly case, comfortable to wear. 5, Widely used: It is multi-functional and convenient for timing, and it is designed for a variety of outdoor sports. It is no problem to wash or shower daily. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.