*Large capacity rechargeable hidden 510 cart battery
*Full body buttonless control, intelligent automatic inhale-activated portable vape pen battery
*Three levels of voltage controllable adjustment (2.6V-3.8V), allowing you to enjoy the taste of steam under different voltages

*Compatible with most 510 threaded carts, strong magnetic connection design, easy and quick to install carts
*Completely hidden cart design, the best choice for cautious users