•  Adjust the volume by pressing the + and - buttons.
    • Control music and video playback — including play/pause and next/previous — by pressing the centre button.
    • Record voice memos on supported devices.
    • Answer and end calls. 
    •  Frequency response: 5Hz to 21kHz
    • Impedance (at 100Hz): 23 ohms
    • Sensitivity (at 100Hz): 109 dB SPL/mW
    • Drivers: Custom two-way balanced armature (woofer and tweeter in each earpiece)