The Yocan Rega is a compact and discreet cartridge option.  The Rega is easily pocketable and is exceptionally light weight. The Rega has the features you expect from Yocan including variable voltage, preheat, and Micro-USB charging.  The Rega puts portability first and makes for one awesome cartridge mod for less than $20.  

Features
Preheat
Variable Voltage
Micro USB Charging
Single Button Operation

Specifications

In The Box
1 Rega Device
1 Magnetic Connector Ring
1 USB Cable
1 User Manual

Replacement Magnetic Connector Rings are available .