Oookay... try this:
http://findarticles.com/p/articles/mim0EIN/is_20090907/ain35618205/
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To provide users with the ultimate in convenience and performance when used with today’s portable music devices, Beats Solo headphones feature “ControlTalk,” an advanced on-cable feature that provides users with full control of their listening experience when using their 3GS iPhone®, iPod® shuffle and other new iPods and portable music devices. The special Monster ControlTalk™ headphone cable features an integrated high grade microphone and answer button and allows users to access their music and answer phone calls without having to reach into their pocketbook, backpack or pocket.
In addition to its availability with Beats Solo and all Beats by Dr. Dre headphones from Monster, including the new white version of Beats Studio and Heartbeats by Lady Gaga from Monster, the ControlTalk feature is also being made available as an option with all Monster brand headphones as well.
The ControlTalk remote and mic are supported by iPod nano (4th generation), iPod classic (120GB), iPod touch (2nd generation), and iPhone 3GS and newer, but not all, Blackberry models. The remote is supported by iPod shuffle (3rd generation). Audio is supported by all iPod models. Requires software version 1.0.3 for iPod nano (4th generation), 2.0.1 for iPod classic (120GB), and 2.2 or later for iPod touch (2nd generation). Support for Blackberry varies by model. Subject to change.