The Joyetech AIO (All-In-One) Starter Kit is the very first eGo style all in one device. The innovative anti leak structure makes for zero leaking mishaps with it's unique design, and a convenient top fill method allows the user to fill the 2mL tank with ease. While there are other all in one devices, such as the KangerTech NEBOX, neither of those feature a built in battery or utilize the eGo battery style. This kit has only one removable part, and that is the replacement coil. This is hands down the best option for beginners that are looking to make the switch. The Joyetech AIO is also a very stylish 1500mah mod with its illuminating LED Tank system with 7 different color options (Red, Blue, Pink, Teal, Yellow, Purple, & Orange). With the atomizer equipped with a child lock and a five button press battery activation, the AIO proves to be an ultra safe unit just in case the device is out of the user's hands. The hidden adjustable airflow is also located at the top of the unit for vapers to dial in on their preferred draw. On top of the adjustable airflow, the drip tip has been designed with a spiral structure for a smooth and controlled pull. With the combination of usability, functionality, and affordability, the Joyetech eGo AIO Starter Kit is perfect for all entry level vapers!