DIY Electrical circuit – Small light LED with switch handmade
- Excellent hand?eye coordination and concentration toys can help them think, increase creativity and interest in learning
- The detachable teaching equipment makes teaching simple, so that children’s classrooms are no longer boring
- Children can learn some scientific knowledge while playing, expand scientific knowledge and promote children’s intellectual development
- Free assembly, exercise children’s hands-on ability, understand the knowledge of simple electronic original accessories
- A great DIY educational toy, suitable for children and students to gain a sense of accomplishment and learning knowledge in the tainment process


US100 Ultrasonic Module 5pins
Ceramic Capacitor 330 pico Farad 0.33nF (331)
BlueTooth Module HC-06
7pcs push button 6x6x5
Industrial Keypad 4x4 -16 Switch Keyboard
MT8870 DTMF Module
Push Button Switch Kit 













