Tired of having your iPad and USB powered devices going dead while in flight, even though you are plugged into a USB power adaptor.
The "off the shelf" USB power adaptors do not put out the needed 3.0 amps needed to keep the batteries charged and run the devices,
and some of them radiate a spurious signal which produces noise in your radios.
We build a dual 3.0 Amp (5.0 Amp Max) output portable shielded power supply.