1. Atomizer connector: sping pin, 510 thread .
2. Variable Wattage from 7W-30W .
3. OLED screen shows battery power, puffs, wattage, voltage, atomizer resistance .
4. Fit for 0.3 ohm~9.9 ohm atomizers(0.3-2.1ohms can reach to 30W).
5. High temperature protection. If the device is over 80 degree the device, will shut itself down.
6. Mic USB connector, more convenient to charge.