The Lookah Snail is a compact, variable voltage cartridge battery.  There are no magnets to worry about here.  You simply screw the cartridge directly into the device.  You can swap between the 3 preset voltage levels by clicking the button 3 times quickly.  The preset levels are perfectly spaced at 3.2V, 3.6V, and 4.2V.  The built-in 350mAh battery charges with the included Micro-USB charging cable.  

This device also works with the Lookah Snail Wax Cartridges.

Features
Variable Voltage
Micro-USB Charging
Compact Design

Specifications
Battery Capacity:  350mAh
Battery Charge Type:  Micro USB
Voltage Levels:  3.2V, 3.6V, 4.2V
Change Voltage Level:  Click Button 3 Times Quickly
On/Off:  Click the Button 5 Times Within 2 Seconds

In The Box
1 Lookah Snail Cartridge Battery
1 Micro USB Cable
1 User Manual