A squonk mod is an all in one vape device that features a built in e-liquid bottle. Squonk mods offer an exciting twist on the traditional box mod and tank. They are similar to box mods but have a soft juice bottle built into the device. When squeezed, E Liquid is forced up through a hole in the 510-connection pin at the top to the squonk / BF / bottom fed RDA tank. The advantage of a squonker is the greater volume of juice in the bottle compared to an RTA tank.
Squonk mods use an RDA which you would previously need to drip eliquid in to, using a squonk mod makes it much more convenient to fill the RDA with eliquid.
Some people believe the RDA tanks offer better flavour than regular tanks.
Because you need to build your own atomiser coil and wick you would need to consider if this is the device for you when starting vaping.