Pulsar Variable Voltage Auto-Draw Vape BatteryThis powerful vape battery is more than it appears to be! Featuring an auto draw pull system, this hands free vape battery features no buttons and no hassle. With a touch control variable voltage, turning up the heat is as easy as tapping the sensor on the bottom, and the 10 second preheat function helps to ensure powerful hits with thick oil cartridges. Universal 510 threading allows theses sleek batteries to be used with most cartridges. Units come