The difference between the $80.00 ESP32 v6 and the $86.00 Marauder lies in a few key aspects. The Marauder is actually the next iteration of the original ESP32 Marauder project, which drew inspiration from Spacehuhn's deauther project. In terms of the battery, the $84.99 version of the Marauder comes equipped with a 3.7V 504050 LiPo battery featuring a 2mm JST connector. On the other hand, the $80.00 version utilizes a VTC5 3.7V Li-ion Rechargeable battery, which is typically found in vapes (yes, that's right 😬). Moreover, the Marauder has seen the addition of some new features, and the case design has been slightly altered. So, to sum it up, while the core functionality may be similar between the two options, the Marauder offers a newer iteration with different battery specifications and a few additional features.