Joyetech ATOPACK PENGUIN SE Starter Kit features a petite size based on ATOPACK PENGUIN Kit, which also features 2.0ml e-juice capacity by the unique refillable cartrige. Penguin SE comes with 2000mAh built-in battery to satisfy your daily needed and maximum output can be reached to 50W. ATOPACK PENGUIN SE have a visual e-liquid window to observe its capacity easily