1. Stereo Earphone for iPhone 2. Driverunit: 14mm Speaker 3. Frequency Range: 20Hz-20000Hz Stereo Earphone for iPhone Description: The Stereo Headset provide superior comfort, fit, and sound quality. The Stereo Headset also features a high performance microphone — fitted with a windscreen for added clarity — that is positioned inline on the cabling for the right earphone. The microphone capsule ...