[Humidifier Soldering Project Kit]Solder your very own fully functional USB humidifier! This DIY kit enhances your soldering skills while helping you understand the humidifier's internal mechanism and circuit design. Perfect for bonding with your children while teaching them valuable scientific and technical skills. [Practical Functions]Stay informed with the built-in OLED display that shows real-time temperature and humidity readings, along with a timer countdown. This makes it easy to monitor your environment and optimize your humidifier's performance. [How to Operate]Powered by 5V USB power supply and four buttons are provided to operate it.<br><br>Color: As shown Material: plastic<br><br>Package Contents: 1 x USB Humidifier Kit<br><br>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.