Upon activation, a large red crosshair will appear on the ground. The crosshair can be moved using tear controls.
After approximately 2 seconds, a large missile will land on the red marker. The missile acts like a large bomb explosion, dealing 20 times Isaac's damage (the same as Epic Fetus).
Notes
This item shares many of the synergies and interactions with Epic Fetus.
The red marker works different from Epic Fetus' marker when controlled with the mouse: While pressing mouse left button, it keeps going away from Isaac, not following the mouse.
Activating the item again while the crosshair is on the ground will cancel the animation of Isaac holding up the remote and allow him to shoot tears sooner.
Activating the item again while having full charge (e.g. with The Battery) will also deplete the charge, wasting it.
Taking damage also cancels the animation.
The missile will still drop on the crosshair, which can no longer be controlled.
This will cancel the missile drop and remove the crosshair.
Synergies
Book of Virtues: Spawns grey bomb-like wisps in the middle ring. When Doctor's Remote is used, the wisps fire two inaccurate, explosive tears at the crosshair in an arc that deal 14 damage (28 with BFFS!).
Epic Fetus).
The Battery) will also deplete the charge, wasting it.
Taking damage also cancels the animation.
This will cancel the missile drop and remove the crosshair.
Book of Virtues: Spawns grey bomb-like wisps in the middle ring. When Doctor's Remote is used, the wisps fire two inaccurate, explosive tears at the crosshair in an arc that deal 14 damage (28 with 
BFFS!).
Car Battery: No effect.
Tainted Azazel: Shoots thin 
Brimstone beams when rocket explodes. This behavior is not shared with 
Teleport! and 
Teleport 2.0, but with a different color.
The Binding of Isaac: Rebirth
