The Aspire K4 is a complete vape kit that is made up of the Aspire K4 2000mAh battery and the Aspire Cleito tank. The Aspire Cleito features a 2ml capacity and is compatible with the whole range of Cleito coils and comes packaged with a 0.27 Ohm Cleito Clapton Coil. The K4 Battery is a powerful and simple device that is operated with a single button. The K4 Battery can be charged via micro USB.