... ,ON/OFF mobile headset 1.It’s the 3 choices switch key that makes the handset compatible with all the 3.5mm mobiles and ... computers, including the iPhone, Samsung, BlackBerry, Nokia, MacBook, iPad2 and etc.2. The sound reduction system enable this handset to ... Asia, Middle East, East Asia and etc. cord retro mobile headset with 3.5mm plug for iphone ipad