Creative LED Alarm Clock Conversion of Energy & Battery by Potato Lemon Fruit Soft Drink

Product Information:
Single size: digital clock size: 6.6*3.3*0.8CM
LCD screen: 5x2.3CM
Commodity material: PP+ electronic components
Commodity packaging: color box

Main configuration:
a LCD screen, digital clock (with wire), 2 test cups (6.3x5.2cmx2 only), potato clock test metal strips (copper 2, zinc 2, long 9.7CM), special transparent adhesive tape, electric connection line (long 21CM), bilingual instructions in Chinese and English.
Package size: 17*21.5*5.5CM

Product Description:
Simple and quick, the magic test results immediately! The children are ecstatic, enlightened and creative.
Two potatoes, or two oranges, two tomatoes, two apples, as long as you have reported any famous two fruits, you may have a power supply station. Even two cups of water, two cups of coke, and two cups of juice are all qualified for this job, and they make you believe that everything is possible. Green science and education test series products, with bright environmental protection, education, entertainment significance.
The magic potato clock uses direct material conversion power supply mode, and digital clocks can be used without batteries and any other external power supply. You can operate the experiment like a scientist and experience the magic of the potato clock.
Not just potatoes, any fruit, such as lemons, tomatoes, pears, and citrus are all unusual battery sources. It also includes liquid substances such as liquor.