Vaporesso XROS 4 Nano Pod System Starter KitVaporesso brings you the XROS 4 Nano Pod System Vape Kit a new addition to their XROS Vape Series. Constructed with durable Aluminum-Alloy metal with a refined curved base, the XROS 4 Nano features a 1350mAh built-in battery (550mAh more than the original XROS). Featuring Vaporesso's SSS Leak-Resistant Technology the Vaporesso XROS 4 Nano utilizes all Vaporesso XROS Cartridges for the best MTL vaping experience including the new COREX cartridges for an even more fulfilling vape. The Vaporesso XROS 4 Nano can be quickly charged via the bottom Type-C USB charging port.