You can listen to music and have conversations using six new Sennheiser headsets (http://www.sennheiserusa.com) specially designed for the iPhone 4, iPhone 3GS and other Apple products. All six versions -- the MM 70i (which has a street price of US$99.95), IE 8i ($449.95), PX 100-IIi ($89.95), PX 200-IIi ($109.95), HD 218i ($79.95) and HD 238i ($129.95) --are based on Sennheiser’s “Portable Entertainment” series.

The microphone and smart remote control unit are integrated into the cable, and allow the Apple product to be controlled at the push of a button or by voice commands. A range of functions can be controlled with a single button.

Depending on how often and how long the button is pressed, music tracks and videos can be played, paused or skipped to the next/previous song. The same button can also be used to receive and end phone calls and to activate the voice control function. This Apple function makes it possible to use voice commands to retrieve songs or phone numbers on the latest iPod Touch version and the iPhone 4 and 3GS. The volume can be controlled using the plus and minus button.