Max 510 Thread Battery 

Features:
Micro-USB Charging
Variable Voltage
Preheating Function

Specifications:
Battery Capacity:  380mAh
Voltage Levels:  2.7V - White, 3.1V - Blue, 3.6V - Red
Thread Type:  510 Thread
Preheat Time:  15 seconds
On/Off:  5 Clicks in 2 Seconds
Adjust Voltage:  3 Clicks
Start Preheat:  2 Clicks
Stop Preheat:  1 Click

In The Box:
1 380mAh Itsuwa Liberty Max Battery
1 Magnetic Micro-USB