Reviews: How long do they keep a charge while listening to music?

Allfei: I've used mine for two or three hours with no problem ( Sep 12, 2012 10:38 )

Reviews: How long do they keep a charge while listening to music?

Allfei: I've used mine for two or three hours with no problem ( Sep 12, 2012 10:38 )

Reviews: Could i wear these in the pool?

Allfei: we are sorry that this product can't be weared in the pool, but you can enjoy outdoor activities like on the beach ( Jul 20, 2008 10:42 )

Reviews: will this work on an amazon tablet?

Allfei: Yes, I use it on my Samsung tablet all the time works great ( Jun 16, 2008 15:32 )

Reviews: can music be stored on the glasses?

Allfei: No the music is streamed from a device. ( May 15, 2008 14:8 )

Reviews: Can I use these for work glasses in case something hits my eye? Will they break of a small rock hits them?

Allfei: The Clips are not strong enough to keep the lenses from breaking off, I wouldn't recommend ( Apr 20, 2008 11:35 )

Reviews: Can these lenses be replaced like the other models?

Allfei: Yup they come with diff. Lens ( Apr 12, 2008 10:25 )

Reviews: are the lenses able to be swapped for prescription lenses?

Allfei: perfect ( Mar 28, 2008 14:46 )