As you'd expect from an all-in-one device, the NW-WS413 is rather large compared to a regular pair of Bluetooth headphones, but considering there's a whole MP3 player hidden inside it, it's really quite sleek given how much tech Sony's managed to pack in.

The Sony NW-WS413 would be just another sports headset with music player if not for the Ambient Sound Mode to make it a little extra special. I get to enjoy loud and detailed music without sacrificing the ambient awareness.