‣ 14mm speakers deliver powerful sound with crisp highs and deep bass. ‣ 32Ω impedance ensures compatibility with a wide range of devices. ‣ A frequency response of 20-20,000Hz reproduces the full spectrum of sound. ‣ A sensitivity of 116dB±3dB provides ample volume without distortion. ‣ A 3.5mm audio plug fits securely into most devices. ‣ TPE high-elastic cable with enameled wire resists tangles and pulls. ‣ An inline microphone lets you take calls and control playback hands-free. ‣ Compatible with mainstream Apple and Android phones.