- Ergonomic EarTech HOP, let yourself be seduced by the beauty of clear sound. - Headphones for those who don't want to run out of battery. - Stereo sound with microphone. - Volume controls and third multifunction button: Pause and skip songs easily or pick up your calls. - Long press 3 seconds: Reject call. Double click: subsequent song. Triple click: previous song. - Music and calls: Wide frequency range for an optimal music experience and voice calls. - Guaranteed compatibility with Apple devices. - Form Factor: Intraural Inner. - Color: White/White. - Length: 1.2m cable - Sensitivity: 93±3dB/mW (dB) - Connector: Lightning comp. Apple. You don't need an adapter to connect to Apple. - Frequency: 20 Hz - 20Khz. - Impedance: 16 Ohms + -15%. - Microphone: -42dB +-3dB. - Materials: ABS and thermoplastic elastomer. - ATTENTION: It is necessary to activate “Bluetooth” on the mobile phone before connecting the headphones.