Product: Boston Hempire Vape Pen Battery

Thread Size: 510
Temp: 3.7v (not adjustable)
Battery: 900mAh
Charger: Micro USB (included)
Color: Black
Light: Blue

To Use: First, screw the vape cart to the top of the pen. Press the button 5 times quickly to turn the pen on (the light will blink 3 times after you finish pressing the button to show pen is on). Press and hold the button to use. When finished, press the button 5 times again to shut off (the light will blink 3 times to show the pen is off).