Planning to take my first truly long xc next week; taking my two oldest (11&7) to universal Orlando. 6 hours in the Dakota, planning one fuel/ lunch stop. Beats the heck out of the 17hr interstate grind or getting groped by tsa, and I can't tell you how excited I am to be able to isolate myself from the inevitable bickering.... you know.... for safety. Anyway, I have nice bluetooth anr headsets for my wife & I, but the kids are stuck with used DC's. I would like for them to be able to watch movies on their tablets and also not damage their hearing. I ordered 1/8 to 1/4 adapter cables, and also trs to ts adapters, but I'm concerned if the tablets will have enough power to drive the headset speakers loud enough to hear. Anyone have any experience with this?