iStick TC40W, an innovation of of iStick series battery, adopts newly introduced technical element of temperature control, which will bring out an unique vaping experience by adjusting temperature setting. Despite the small size, it can reach 40W with large 2600mAh power capacity. Moreover, all stainless steel threads and elastic spring connector endow it with strong wear resistance. With temperature control function, power saving will also be a plus. The kit includes the color battery of your choice, usb and wall adapter.