Q: What is the packaging of the product? A: One hat per bag. Q: What size do I have to choose? A: This hat (6 petals) is a Velcro design, can be free to adjust. Adjustment range is 50cm-58cm. Manual measurement. According to different measurement method, the error remained at 2cm approximately. Q: What is the purpose? A: A dark environment such as party, bar, festive carnival, fishing, mountain climbing, nighttime extreme sports and outdoor games Q: What color choice? A: There are three colors of light: blue, green, red, you can choose your favorite color basing on needs. Q: where is the switch? A: It is a button in front of the hat near the outside, can not be seen from the outside. The design has good concealment. The first use can look at the sticker to find the button. Q: How long does the product emit light? A: About 80 hours. Q: Can you wash it? A: Yes. When cleaning, you need to remove the switch box, line lights. The light guide does not need to be moved. Q: Do I need a battery? A: Yes. The product comes with two CR2032 batteries. The power supply device is fixed in the hat lining, can not be seen from the outside. When you replace the battery, you need to open the device. And you need to turn on the power device by pushing the small switch to the "on" state before use. Q: What should I pay attention to when using it? A: Be careful not to pull the wires of the power and avoid water.
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