iPhone - How long do the speakers on an iPhone last?

FYI - the iPhone includes a single speaker - the opposite grill that appears the same is the iPhone's microphone.

It makes no difference.

The 3Gs offers "up to" 10 hours of video playback, or 30 hours of audio playback on a full charge at original capacity. Using the external speaker will not use more battery than using the earbuds but if so, the difference will be negligible.

This is also included as a footnote.

All battery claims depend on network configuration and many other factors; actual results will vary.

To get the most battery out of Audio playback, turn Airplane mode on so all iPhone radios will be off.

You're welcome.

it helps me out now that I know I can play music on the external speaker for 30 hours (on a fully charged battery of course).

Copied from my previous post.

The 3Gs offers *"_up to_"* 10 hours of video playback, or 30 hours of audio playback on a full charge at original capacity.

Along with this footnote.

All battery claims depend on network configuration and many other factors; *actual results will vary*.

The battery life of the 3G S when playing back natively (!!!) supported multimedia content is astonishing - way better than on many competing, non-hardware-accelerated platforms.

I've made some very extensive tests and found that simply playing back locally available 2 Mbps 480*320 MP4 - H.264 videos can be played back using 0.069% power /minute - that is, even less than 5% ⚠ an hour. The 3G consumes a lot more (as H.264 playibck is not (fully?) hardware accelerated on it): 0.3%/min; that is, 18%/hour.