The iJoy CAPO 100 is a compact single 21700 battery mod that features a similar design and shape to the SMOK AL85 and the Eleaf iStick Pico series. The iJoy CAPO 100 can fire up to 100 watts and is powered by a high capacity iJoy 21700 3750mAh battery which is included in this starter kit. The iJoy CAPO 100 utilizes the IWEPAL chip which supports various temperature control modes. The iJoy CAPO 100 features a 0.96inch OLED display screen and offers the ability to fire Nickel, Titanium and Stainless Steel coils in temperature control mode. The iJoy CAPO 100 requires (1) high amp 20700 or 21700 battery which is included. The iJoy CAPO 100 also features a micro USB port for charging and future firmware updates.