Adopting all-in-one style, Nord AIO series makes the most of its design. There is a press button on the top cap to avoid accidental leakage and plays a role of child lock as well. The built-in glass tank puts the steel shell and glass tube into one, which is designed for easy installation and use. Nord AIO 19 has an internal 1300mAh battery, is capable of firing up to 25 watts. SMOK Nord AIO use Nord Mesh 0.6Ω coil which is the best fit for sub ohm vaping to bring you massive vapor, and Nord Regular 1.4Ω coil that can offer excellent MTL experience. All-in-one design, simple and efficient, and it's worth a shot. The pentagon power button is strikingly placed at the upper part of the battery, by holding which you can easily finish the operation of power on/power off and enjoy hassle-free operations.