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    AccessoriesOpen-ear Stereo Headset STH40DOverview
    Open-ear Stereo Headset STH40D

    Dual listening, lightweight design.

    The best of both worlds

    Listen to a favourite song and order a coffee at a café, or participate in a conference call and hear the track number for your train. Discover a totally new dual listening style. Fitting comfortably around your ear, Open-ear Stereo Headset STH40D doesn’t block the ear canal, so you can hear your favourite music and the sounds of your environment simultaneously. With Open-ear Stereo Headset STH40D, you can enjoy the best of both worlds.

    Easy to use

    Functionality at your fingertips

    With an easy access remote control, you can manage your music and calls with simple multi-function keys. Plus, once you’ve activated voice controls at the touch of a button, you can enlist the help of Google™ or Siri2

    Perfect fit

    Open-ear Stereo Headset STH40D fits comfortably around your ear and is so small and lightweight you’ll forget you’re even wearing it

    • Grey
    • Green
    • Black
    • Pink


    • Open-style design for dual listening

    • Multi-function key

    • Voice assistant for Google and Siri2

    • Lightweight and comfortable fit

    • Colour harmonization with latest Xperia™ smartphones

    • Safety carrying pouch included

    Approx 18.0g
    Cable length 1.2m
    1. 1iOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under license.
    2. 2Google is a trademark of Google LLC. Siri is a trademark of Apple Inc., registered in the U.S. and other countries.