Long-Lasting 650 mAh battery is a definite pro
Magnetic lock to easily snap your cart into place
Over-voltage and short-circuit protection
I thought the NOVA Hush provided a good consistant hit across all ranges. You can adjust the level by using "quick draws" or a button on the bottom. A typical range of voltages from 3.0V- 3.8.
It's got a nice faux leather feel that is easy to hold on to. All this for only $30. While supplies last!
Stress Tested by the most clumsy user we could find -- That would be me! Being dropped numerous times and cracked with a leaky cartridge just doesn't stop this vap battery! IT STILL WORKS!!