Product Specifications: Slim Refillable Pod Kit 520mAh Battery Inhale Activated MTL Vaping Mesh Coils Package Contents: Uwell Caliburn AK2 Pod Kit 2 x Caliburn A2 Refillable Pods User Manual Lanyard Uwell Caliburn AK2 Pod Kit The Uwell caliburn AK2 Pod Kit is on of the most compact and simple kits on the market, thanks to its built in 520mAh battery and its draw activation, there is no need for fancy screens or settings to worry about, insert the pod and draw vaping couldn\'t be simplier. Utilising the Caliburn A2 disposble pods which have an integrate coil and will last for a while, simply fill up multiple times and once the coil has reached its lifespan which is usually indiciated by a loss of vapour production, Taste and a slight dry sensation just dispose of the pod and replace. The A2 pods are best used with 50/50 or Higher PG liquid. To ensure you get the most out of your pod the AK2 features a nice size viewing window on the side to give a clear view of the pod and the eliquid level as well as a fixed output power method meaning unlike some devices you will get full power output to your pod no matter what the battery level, a battery LED battery indicator at the side of the device will give you a clear readout off the status of you battery cycling through 3 different colours, green, blue and red. The red Indicator means its time to charge with power less than 30%.