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BT539i Wireless Headphones

BT539i Wireless Headphones

The Koss BT539i now includes a free hard shell case! (with purchase at Koss.com only) Exclusively on Koss.com
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The Koss BT539i Wireless Bluetooth® Over-Ear Headphones pack powerful wireless sound into a portable, fold-flat unit.

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 excellent seal for the most consistent sound reproduction.

Connect your BT539i to your favorite Bluetooth enabled device and stay connected using the built-in microphone. Easy to locate, on-board controls allow listeners to quickly navigate through songs, play or pause music, change the volume level, 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 fit comfortably around the ears to block outside noise and keep music from leaking out. When the music stops, the Koss BT539i headphones fold flat into a convenient size that is easy to carry and even easier to store.

The Bluetooth® word mark is a registered trademark owned by Bluetooth SIG, Inc. and any use of such mark by Koss Corporation is under license.
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10-20,000 Hz 38 Ohms 97 dB SPL
4 foot One Year Warranty
10-20,000 Hz 38 Ohms 97 dB SPL
4 foot One Year Warranty

  • The Sound of Koss

    High-Resolution dynamic audio driver

  • Cut the Cord

    Bluetooth® 4.0 Wireless Freedom

  • Stay Connected

    Built in microphone & on-board controls

Cut the Cord

Wireless Bluetooth®

Over-Ear Headphones

Key Features:

  • Full size, Wireless Bluetooth® Over-Ear Headphones
  • Bluetooth® 4.0 Technology
  • D-Profile
  • Built-in rechargeable lithium-ion battery
  • Up to 12 hours of playtime (at moderate volume) on one charge
  • Up to 40 hours of standby time on one charge
  • Detachable cord
  • Fold flat for travel
  • Available in dark grey or white
  • Free hard shell case (with purchase at koss.com only)
10-20,000 Hz 38 Ohms 97 dB SPL
4 foot One Year Warranty