Sony MDREX155AP In-Ear HeadphonesHeadset with Mic for Calls, Black (MDR-EX155APB)

Integrated microphone and smartphone playback controls. Product Note: If the earbud tip size does not match your ear canal size or the headset is not seated correctly in your ear, you may experience poor sound quality and call performance. Change the earbud tips to ones that fit snugly in your ears. 9mm neodymium drivers for dynamic sound. Silicone earbuds for a comfortable, secure fit. Flexible, 4-foot Y-shaped cord. Lightweight design for easy portability. In the box: Cord adjuster, 3 pairs of ear tips (S, M, L). Connection technology: Wired. Frequency response - 5Hz-24,000Hz, Impedance - 16 ohms.