SMOK G-PRIV 220 Starter Kit is powered by dual external 18650 batteries (not included) so that the G-PRIV supports max 220w wattage. The big 2.4" TFT touch screen and screen lock button will simplify vaping operation. And the lateral big fire key provides you with good hand feel and smooth visual effect. You can operate the G-PRIV 220 just like using a smart mobile phone. TFV8 Big Baby works well with G-PRIV 220 and forms up G-PRIV 220 kit. The G-PRIV 220 kit will bring better vaping experience to you.