Dragonfly will charge up from a radioactive generator during the week-long Titanian night time. It will be able to fly maybe 50 km per charge. It could potentially check out 100-odd locations all over Titan during its two year mission. No previous surface mission to an extraterrestrial body has had such scope.
The sample equipment (drills and suction hoses) are built into the landing skids.
Even though it won’t move during the night cycle it will continue to make obs (weather obs, seismic recordings, taking samples, examining the local environment using LED lighting).
Near as I can tell, it won’t be a floater: solid landings only.
One thing that really surprised me is that the Dragonfly will transmit straight to Earth. Huygens transmitted its data to Cassini, which then transmitted to Earth. You’d have to assume that it will require a high amount of power to achieve this from the surface so I’ll be very interested to find out about its final specs.