For music & phone calls. Includes 3 pairs of silicone tips for personalized comfort. Fits all stereo 3.5 mm devices. Great for listening and talking. Get the most out of your phone with the least effort! Hottips Stereo Earbuds provide powerful sound and deep bass while the microphone gives the convenience to answer phone calls at the push of a button. When you're done talking, press the button again to resume your music. Specifications: Driver Unit: 10 mm; Impedance: 32 ohms +/- 10%; Sensitivity: 106 dB +/- 3 dB; Frequency Response: 20 Hz-20 KHz; Max. Input Power: 5 mw; Cord Length: 1.2 m +/- 10%; Audio Jack: 3.5 mm, stereo, gold-plated; Mic Sensitivity: -58 dB +/- 2 dB; Mic Impedance: 2.2 Kohms. Limited Lifetime Warranty: Thank you for selecting Hottips! high quality wireless accessories products. Hottips! warrants this product from defects in material or workmanship for the life of this product. This warranty does not extend to damage or failure which results from misuse, neglect, accident, alteration, abuse, improper installation or maintenance. Please return the defective product with a brief explanation of the problem along with $3.00 for shipping and handling. If you need assistance, please call our toll-free tech-support at 1-800-525-5097 or mail to Navajo Manufacturing Company, 5530 Fox Street, Denver, CO 80216. Made in China.