1.Short Circuit protection
2.Unique PCB Design
3.Improve Bottom Spin
4.3.3V to 4.8V smooth turning voltage adjustment dial.
5.New Upgraded and stable PCB control Board .
6.More Confortable and ergonomic spin Dial for adjusting The Voltage
7.Brand New and upgraded Battery Cell ( which makes the spinner II even more Powerful .)
8.Longer Lasting Life span due to the New upgraded PCK circuitry And Battery Cell.
9.By Micro USB Passthrough charge.Connect your PC or mobile power at any time for charging