The Airscream Airpop is a closed pod system that offers a large range of flavours with an easy to use mechanisms. The device itself is around 500mAh internal battery with a front indicator light and an auto draw system with no buttons on the device. It has a bottom USB connection which allows it to charge in the USB charging dock provided. The charge time on this device is around 45 minutes and battery life can last for well over a day. Happy Vaping.