never used batteries with my 404 and i'm wondering if anyone knows how long i should expect them to last when i get on the road.

I took my 404 on a weekend trip and the batteries lasted well. When I got back home I used it for 2 or 3 nights with the same batteries still.. So I'd say the batteri life is surprisingly long. I use rechargable batteries.

Note that I used mostly headphones. I've noticed plugging the 404 to some big ass pa system sucks the power out of the batteries pretty fast.

awesome. thanks.

i'd say about 6hours on average.