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Koss BT539IK Bluetooth Headphones


  • The Koss BT539i Wireless Bluetooth® headphones have the natural fitting, iconic "D-profile" earcup, first featured on the ergonomically designed Koss Pro4AAA and now available on many Koss headphones.
  • The D-profile mimics the shape of the ear, creating an ideal seal for the most consistent sound reproduction.
  • Listeners can stay connected using the built-in microphone. Easy to locate, on-board controls allow listeners to quickly navigate through songs, play or pause music, volume-up, volume-down, and answer incoming calls.
  • The built-in rechargeable lithium-ion battery delivers up to 12 hours of play time or 12 hours of call time (at moderate levels) and 40 hours of standby time on a single charge. If the rechargeable battery runs out, the BT539i comes with a detachable analog cord, which can be used as an audio bypass.
  • Closed ear cushions seal comfortably around the ears to block outside noise and keep music from leaking out. When the music stops, the Koss BT539i Wireless Bluetooth® over-ear headphones fold-flat into a convenient size that is easy to carry and even easier to store.

    Model: BT539IK
    Manufacturer: Koss
  • Black
    Price: $99.99

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