Best selling 0.5ml vapor colored smoke disposable cbd vap e pen

Description

Functions:

1) When the electronic cigarette is not in use, it keeps in standby mode.

2) The LED light will be turned on when you are inhaling, and vapor will be produced; any continuous inhaling over eight seconds, the system will be locked provisionally after LED flashing two times.

3) When the voltage is lower than 3.3 V, the low-voltage-alarm function starts, with the light keeps flashing 10 times, reminds customers that the battery is running out.