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Discontinued Product

Koss BT539i White Over-Ear Wireless Headphones - 191809

Product Details

Koss BT539i White Over-Ear Wireless Headphones - 191809

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. 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.


  • 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
  • High-Resolution dynamic audio driver


  • Frequency Response: 10‐20,000 Hz
  • Impedance: 35 Ohms
  • Sensitivity: 97 dB SPL
  • Distortion: <0.3%
  • Battery: 230 mAh Lilon
  • Cord Length: 4 ft
  • Cushions: Circumaural, Pressure Sealed Vinyl Leatherette

Approximate Weight:

  • Shipping: 2 lbs

Warranty Information:

  • Manufacturer Warranty (authorized online retailer): One Year Parts and Labor
California customers: Proposition 65 WARNING - learn more
Key Features
High-Resolution Dynamic Audio Driver/ Bluetooth 4.0/ "D-Profile" Earcup/ Built-In Rechargeable Lithium-Ion Battery/ Up To 12 Hours Of Playtime On One Charge/ Up To 40 Hours Of Standby Time On One Charge/ Detachable Cord/ Fold Flat For Travel/ 10‐20,000 Hz Frequency Response/ 35 Ohms Impedance/ White Finish
More reasons to buy the Koss BT539i White Over-Ear Wireless Headphones 191809 from Abt Electronics
  • is an authorized dealer.
  • The Koss BT539i White Over-Ear Wireless Headphones 191809 is Brand New.
  • Abt ships this product for free!
Connection To Smartphone / Media Player: Wired Or WirelessWireless
True WirelessNo
Ideal For Wireless TV UseNo
Ideal For Sports And WorkoutsNo
Android ControlsYes
iPhone ControlsYes
Sound IsolationNo
Noise CancelingNo
Power SwitchYes
Volume ControlYes
Gaming HeadsetNo