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  1. Sound and Vision
  2. Sound
  3. Headphones
  4. Headphones
Koss BT539i

Koss BT539i

Headphones, Wireless or Cable: Wireless Over-Ear, Bluetooth, Volume Control for Headphones, Button to  Answer/Hang Up, Button to Play/Pause, Button to Skip Song
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from £74.99 to £99
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Product
Product nameBT539i
Type
TypeHeadphones
Product properties
TypeHeadphones
Headphone Sensitivity97.0 dB/mW
Headphone Impedance38.0 ohm
Audio features
Headphone Sensitivity97.0 dB/mW
Headphone Frequency Response Min10.0 Hz
Headphone Frequency Response Max20000.0 Hz
Headphone Impedance38.0 ohm
Features
FeaturesButton to Play/Pause, Button to Skip Song, Button to  Answer/Hang Up, Volume Control for Headphones
Wireless
Wireless or CableWireless
Wireless TechnologyBluetooth
Bluetooth Version4.0
Frequency response
Headphone Frequency Response Min10.0 Hz
Headphone Frequency Response Max20000.0 Hz
Design
DesignOver-Ear
Audio
Speaker Configuration2.0
Power Supply
Battery Time in Standby40.0 h
Battery Time in Use12.0 h
Battery TypeLi-Ion
Power SupplyRechargeable Battery