1.100% and high quality
2.simple and practical,
3.low power consumption.
4.it uses integrated circuits for driving
5.the parts , and the line is simple and easy to understand.
6.external wiring kit: with pluggable plug for easy replacement of parts at any time and conducive circuit debugging.
7.size 60*60*136mm
8.working voltage: dc4.5-5 v
9.power supply: 3 section aa battery or usb charger

package included
13*resistance
37*led light red/yellow/green)
1*switch
1*power socket
6*capacitance
6*triode
2*screws
1*usb cable
1*battery slot
3*circuit board