Sentry Industries Inc. HM322 Metal Talk-Buds Ear Buds with Mic, Blue Noise reduction metal in-ear talk buds are compatible with a smartphone, cell phone, MP3, iPod, iPhone, iPad, tablets, Blackberry and more; includes extra ear pads Convenient click control button on microphone allows you to play music, pause and skip through songs, answer or end calls on your cell phone Noise reduction; listen to music and talk hands free with inline microphone Frequency: 20Hz - 20kHz; Drive unit (diam.in mm) - Diameter 10mm Two-tone tangle-free 4-feet long flat cord with 3.5mm plug