After applying this Upgrade to your Aether Missile Battery, the missiles it launches have a longer range and can be made more accurate. The range of all abilities granted by the device increases by +30 feet.
You can spend any number of charges of Aether Flux when you use one of the Device’s granted abilities to add a +2 Bonus to the attack roll of 1 missile fired with that use of the ability per charge you spend this way. You cannot apply this Bonus multiple times to the same attack roll.