Mantis307 is described as "a fat, mean, and rubbery VST synth influenced by the similarly raucous sonic stylings of classic analog synths like the TB-303, MC-202, Nord 3, OSCar and Juno 60".

It features "killer" unison and distortion, as well as constant time-slide ("portamento done right"). In addition, sync, mono and polyphonic modes, keyboard tracking, and 3 envelope curve types, and much more. All with a low CPU footprint that lets you layer many mantis sounds without breaking a sweat.