Sony Ericsson has announced the launch of the "clever" MH907 headphones, the end result of its "the way you listen to music is going to change forever" teaser campaign.

Apparently a world first, the motion activated efforts work automatically once you stick both the earphones in your ears.

Using Sony Ericsson's "SensMe" tech, to pause the music, remove one of the earbuds. The same works to answer and end calls.

Sony Ericsson says you can’t accidentally answer a call when your phone is in your pocket or bag since MH907 "is only activated by body contact".

Due to be available in yellow and white and "Titan" chrome, the headphones will work with most Sony Ericsson phones with a fast port connector.