Joyetech OCULAR/OCULAR C adopts innovative touchscreen tech with smart system. It comes with photo gallery, music player and pedometer functions. It also supports firmware upgrading. Joye OCULAR comes with a built-in 5000mAh battery and supports max 80W power, while Joye OCULAR C can be powered by 2 pieces 18650 batteries to reach up to 150 watts. Each one will provide premium vaping experience to you. It is more than a vaping gear.