Teching All-Metal Stirling Engine DIY Model Collection Gift Developmental Science Toy DM20

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Description:
Brand: Teching
Item No.: DM20
Quantity of Parts: 67pcs
Net Weight: 240g
Battery: 500mAh*2 (Include)
Working Voltage: 10-20V
Charging Time: About 40 minutes
Display Time: More than 30 minutes
Age: More than 10 years old
Packaging: Retail Box and Gift Bag
For English manual, please click here
 
Package Included:
1 X Teching Model
2 X  500mAh batteries