Mizco EKU-CHA2-BK Ecko Chaos 2 Stereo Earbud Headphones with In-Line Microphone - Black Built-in mic and control switch works with iPhone, Android, Blackberry and any phone with a 3.5mm jack Includes 3 different sized silicone ear buds and a Soft Nylon Travel Bag High intensity listening experience with crisp, clear sound and deep bass ; 3.5 mm audio plug for premium, no-loss sound connection to your audio device Works with iPod, MP3 player, CD, portable DVD, PSP, MD, and Laptop Premium sound quality, compact size, and sleek design ; Speaker Diameter: 10mm ; Frequency Response: 10-22kHz ; Maximum Power Input: 20mW ; Impedance: 16 Ohm ; Cable Length: 1.20 meters