This is a 510 thread 400mAh vaping battery with variable voltage and a convenient preheating function. The battery uses a convenient twist feature at the bottom to adjust the voltage between 2.0V and 4.0V. You can activate the preheating feature by pressing the button 2 times.  You can also lock and unlock the battery button by clicking the button 5 times within 2 seconds.  The battery includes a screw on USB charger.

Features:
400mAh Battery Capacity
Twist Variable Voltage
Preheating Function

Specifications:
Battery Capacity:  400mAh
Thread Type:  510 Thread
Variable Voltage:  2.0V - 4.0V

In The Box:
1 400mAh VV Preheat Battery
1 Screw On USB Charger