With more and more people listening to music on their mobiles it's not surprising to see companies like Sennheiser coming up with stylish combo-devices like the MM-200.

The audio giant's latest addition to its Bluetooth headset range combines the powerful CX-400 in-ear buds (which cost £55 if you buy them separately) with A2DP stereo Bluetooth support that allows you to switch between audio playback and your phone at the touch of a button.