Sony XB13 Waterproof Headphone

The SRS-XB13 is durable, portable and includes a strap specially designed to make it easy to travel with. But don't be fooled by its small size, with Extra Bass™ and Sound Diffusion processor, this little speaker packs a lot of punch.
Small size and multi-directional strap
Enjoy powerful sound with EXTRA BASS™
Audio diffusion wizard creates additional audio diffusion
IP67 rated water and dust resistant
16 hours of battery life and a new battery life indicator