PWOW ErgoFit In-Ear Earbuds Headphones Earphones, BLACK Dynamic Clear Sound, Ergonomic Comfort-Fit, Multipurpose Remote, Hands-free Speakerphone, Volume Control, Siri, For Android& IOS, SE 560 Black ultra-soft ErogoFit in-ear earbuds headphones conform instantly to your ears Enhanced sound effect, ensuring clarity of sound and especially perfect bass from low impedance, high sensitivity and frequency range Multipurpose Remote: Volume control, music switching, hands-free call, open Siri in iPhones. Built-in microphone and answer key, allowing hands-free calling; switch key to work on different devices Anti-winding earphone wire, no longer trouble unwinding your wires