project instruction:1. The enclosed packaging:Mask* 1Controller* 1(Not included) 2 * AA batteries2. There are 4 control modes: stable light, slow flash, fast flash, off3. This mask is made of high-quality PVC and El cold light, no UV damage, no side effects on the human body.4. Clip the power cord clip to your pocket or clothing.5. Masks can be used on any occasion, such as parties, carnival parties, discos, clubs, birthdays, festivals, and events.caution:1. Due to manual measurement, please allow a difference of 1-3 cm, and a difference between different colors please allow 3-5 grams.2. Due to screen differences, the colors may differ slightly from your expectations, please allow.