Earphone Headset With Remote Mic for iPhone 4S 4G 3G 3GS i Pod Touch Nano Video Adjust the volume by pressing the + and - buttons. Control music and video playback - including play/pause and next/previous - by pressing the center button. Record voice memos on supported devices, Answer and end calls. Compatible with: Apple iPad, Apple iPad 2, Apple The New iPad, Apple iPhone, Apple iPhone 3G, Apple iPhone 3Gs, Apple iPhone 4, Apple iPhone 4 CDMA, Apple iPhone 4S Also Compatible with most Cell Phones: BlackBerry, Casio, HTC, Motorola, Samsung