The OBS Cube Mini is designed for MTL vape with low power output from the OBS Cube family. The Cube Mini vape kit comes with a 1500mAh integrated battery to provide long battery life-span. The big and responsive round button of the Cube Mini battery makes operation easier than ever. The 3 color LED light below the button tells you the status of battery too. The Cube Mini tank comes with two juice capacity, 2ml, and 3ml, to meet your own vaping needs. The innovative cores of the Cube Mini tank will fit juices of different strengths. The tank adopts a top filling system and bottom airflow via three tiny holes.