Tamiya 72007 4-Speed High-Power Gearbox Kit Shipping:1 day and the operating voltage range

and the operating voltage range is wider

Easy-to-use Grove Compatible Interface

connect the FPC connector and power the board

note that touching parts of the board with your finger can affect the output voltage)

Support Xbee IO directly control

Tamiya 72007 4-Speed High-Power Gearbox Kit Shipping:1 day and the operating voltage rangeWith possible gear ratios of 39. 6: 1, 47. 6: 1, 61. 7: 1, and 74: 1, the Tamiya 72007 4 Speed High Power Gearbox is well suited for most applications that require a balance of speed and torque. The Tamiya 72007 4 Speed High Power Gearbox kit includes one brushed DC motor and all the gears and parts to build any of the four possible gear ratio configurations: 39. 6: 1, 47. 6: 1, 61. 7: 1, 74: 1. The four gear ratio options give you the flexibility to