The Koss BT539iw Wireless Bluetooth® Over-Ear Headphones pack powerful wireless sound into a portable, fold-flat unit.
- Bluetooth® 4.0 Technology
- 10-20,000 Hz
- 97 dB SPL
Brand: Koss
Model: BT539iW
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- 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
- Available in dark grey or white
- 10-20,000 Hz
- 38 Ohms
- 97 dB SPL
- 4 foot
- One Year Warranty
