♬【ULTRA-SOFT ERGOFIT】Perfect size ultra-soft ErgoFit in-ear earbud headphones conform instantly to your ear for running, travel and sleep, avoiding falling out ♬【BUILD-IN MICROPHONE】Universal build-in microphone for iphone, Samsung, and most smart phones, with updated materials of microphone key to make the clear sound both for calling and record sound or songs ♬【NOISE ISOLATING EARPLUGS EARBUDS】Travel and sleep music best partner, total soft silicon comfort to wear, and in-ear Noise isolating earplugs prefect your hearing from harmful noise levels at loud events, cut out excess sound from everyday life and your favorite activities and offer you pure music, Best choice to Side Sleeper

Type Ear coupling: In-ear Primary application: General listening Secondary application: Mobile Operating principle: Closed Audio Frequency response (TX): 20Hz - 20kHz SPL: 99 dB Driver size: 9mm THD: Info not available Noise cancelling: No Other Weight: Info not available Cable type: Straight Cable Length: Info not available Connector: 3.5mm Built-in mic: Yes Bluetooth connectivity: No Mode offers a huge sound in a small package Featuring customized drivers delivering high-output sound at minimal distortion