Hrm. Trying to decide if a couple of these might fix a problem for me. When we travel on long car trips, I bring along one of these (Audiovox Portable 10” LCD TV with DVD Player & In-Car Mounting Kit) -- an ancient WOOT that's still trucking along.
We almost never play actual DVDs though -- I have a iPod Touch loaded up w/Nick Jr and PBS Kids shows that i've recorded using my PC-based DVR (which, incidentally, is powered by the equally ancient and still fabulous former WOOT "Adaptec Dual TV Tuner-Remote Control for XP Media Center") and converted to H.264 format. I've got a cable to connect the Touch to the DVD player inputs. Voila! Large screen, both kids can watch, DD6 can use the Touch as a remote to control playback. Problem is the audio levels on the TV shows are low. Not a big deal when watching them on the actual TV at home -- just crank the volume a little. But poor little DVD player doesn't have the speaker power. Kids have a hard time hearing it over the car noise.
SO -- I'm wondering if I should get a couple of these, plus an audio splitter. Plug the audio input part of the cable into the splitter, then position/attach one of these guys on each kid's car seat closer to their ears. I think a 16" cord would probably work. I guess I can get a slightly longer audio cord if necessary. Might fix the problem!
I'm trying to avoid dealing with headphones, both for the "you'll blow your eardrums out, kid!" issues and also because the other kid is only 2 and wouldn't keep them on anyway. (Or would tangle them, etc.)
It's also possible that my love of connecting stuff together to make more stuff is getting a little bit out of control. :-)