510 thread connection
Aluminum body with Magnetic Back Cover
Built in MOSFET with short circuit protection and reverse battery protection.
Electronic switch fixes previous versions autofire issues when paired with larger atomizers.
Powered by 2 x 18650 batteries (not included)
Dimensions: 4.25 x 2 x 1 in.
Dimensions with button: 4 x 2.5 x 1 in