GE Universal All-In-One In-Ear Stereo Headset - 38973 Compatible with iPhone, Blackberry, iPod, MP3 Players, computers, cordless phones, and other devices with a 2.5 or 3.5 mm headset jack Comfortable stereo ear-set for listening to music and making calls Highest quality stereo sound ideal for phone call and voice over Internet applications Conformable ear cushions for different sized ears to reduce background noise Includes a 2.5mm, 3.5mm, and computer adapters