Altec Lansing has introduced its new Upgrader series of headphones for MP3 players and multimedia phones, including the iPhone. The series — offered with (UHS) and without (UHP) a microphone — includes the UHS 302, UHS 306, and UHS 307, all of which sport microphones and a “convertible” adapter developed to connect with the iPhone and other mobile phones. The UHP 306, UHP 336, UHP 101 and UHP 301 all feature in-ear designs…
