The Mi-Pod System offers a top-notch alternative to all the pen style ultra compact systems on the market. The System is packed full of powerful features that make this one of the go-to refillable pod systems around. The device's airflow is fixed and is more on the airy side. This makes for some impressive vapor production even with Nic Salt eLiquids. The Pass-through charging lets you plug the device into your favorite power bank for uninterrupted vaping. Not to mention the refillable cartridges let you use your favorite e Liquids and pass on the expensive pre-filled pods. The keychain loop lets you Keep your Mi-Pod close on your favorite lanyard or chain. Don't let this device's size fool you! It's the real deal!