Motor Power Module For Twice Size Big Building Block Sets. Built-in rechargeable lithium battery. Technology building block gear set accessories.
Product Description
Motor Power Module For Twice Size Big Building Block Sets. Built-in rechargeable lithium battery. Technology building block gear set accessories.
Motor speed 90/min.
3.7v 500mah Built-in rechargeable lithium battery.
With USB charging cable.
Application scenario (example):
