The Delta Squonk Mod is a collaboration between Revenant Vape (Vaporesso) and TVL (The Vape Lounge): “It comes with an easy and convenient Press-to-Fill system. This system lets you fill your Delta Squonker with your favorite e-juice without having to take out your bottle, seriously reducing leakage.”
Looking at the first pictures the Delta Squonk Mod seems to be a single battery mod, with a bottom fill mechanism and a push-to-squonk button on top. Apparently, there’s a lot of room for innovation in the way squonkers work. More info on the official release date.