Presenting the UWELL Caliburn KOKO Pod System, a finely crafted vaping pod system manufactured with a integrated 520mAh rechargeable battery, Caliburn pod compatibility, and can be concealed within the palm of the hand with ease. The Koko has a 520mAh battery and an 11W maximum wattage output — the same as the Caliburn. It`s a draw activated device so there are no buttons; simply inhale on the mouthpiece to vape. The draw from the Koko is the same as the Caliburn. It`s a nice, loose MTL draw. The Caliburn & Koko both use the same pods, so you wouldn`t expect much differences here if any. While slightly lower in grade for flavour vs the Yearn the Caliburn still produces remarkable flavour with every hit, time after time.