The Eleaf iStick Pico Baby kit deploying a magnetic mechanism that smartly locks the GS Baby tank in the box. Ithas an impressive 1050mAh internal battery. The innovative button lock system skillfully avoids unintentional tap on the button when the iStick Pico Baby is stocked in the pocket. Paired with a newly designed all stainless steel, GS Baby tank that features a refined airflow system and uses GS Air coils. Built-in 1050mAh Battery Very Small and Ultra Portable Innovative Button Lock System Intuitive LED Indicating Battery Life Easily Accessible Charging Port Accepting Tanks of 14mm Diameter Dual Circuit Protection A Refined Airflow System Solid Structure of All Stainless Steel GS Air Coils Optimized for Flavor 510 threading connection 16.5mm overall diameter Brand: iSmoka Eleaf Max Output Wattage 25W Resistance Range 0.4-3ohm E-juice Capacity 2ml Tank Diameter 16.5mm Size 75 x 47 x 23mm