The Joyetech Unimax 25 Starter Kit features a 25mm diameter tube-style design with a built-in 3000mAh battery. The Unimax 25 is a fresh alternative to the popular box-style mods. The Unimax 25 features direct output and constant voltage output modes and works great with the included Unimax 25 tank. The Unimax 25 tank features the Joyetech TFTA - top fill and top airflow design. The large airflow inlet allows for increased vapor production. The Joyetech Unimax 25 tank utilizes the Joye BFL Kanthal 0.5ohm DL atomizer heads which are designed for a direct lung vaping experience. A micro USB port may be used to recharge your device. The Unimax 25 is perfect for when you're on the go with the simple one button design.