Koss BT539i Wireless Bluetooth Over Ear Headphones - Dark Grey

Brand: Koss
Product Code: BT539IK
Warranty: 12 Months
$149.00
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Wireless Bluetooth Over Ear Headphones

The Koss BT539i now includes a free hard shell case! Exclusively on Koss.com

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.

Listeners 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.

Bluetooth® is a registered trademark owned by Bluetooth SIG, Inc. and any use of such mark by Koss Corporation is under license.


The Sound of Koss

High resolution dynamic audio drivers.

Koss BT539i

Built to Last

All new rugged cord and plug.

Koss BT539i

Patent Pending Suspension

Designed for personalized comfort & extended use.

Koss BT539i

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
  • Color: Dark grey
  • Available in dark grey or white
  • Free hard shell case
Specifications
Frequency Response 10-20,000 Hz
Impedance 38 Ohms
Sensitivity 97 dB SPL
Cable 4 foot (1.2m)
Warranty One Year Warranty
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