1. vacuum coating design, more attracitve.
2. all parts detachable.
3. variable voltage
4. 7 colors
5. inside 14500 battery
6. best circuit board, has short circuit protection
How to use the TF1 battery:
1· Unscrew the bottom spring cap.
2· Put the 14500 battery into the body(keep negative side outside).
3· Screw on the bottom cap.
4. Screw the ego-t metal part/variable voltage metal part on the battery.
5· press the button for 5 times continuously to unlock before smoking.
6· when finished smoking, please click 5 times to lock the battery.