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Colour

BT539i (Over-Ear, White)
BT539i (Over-Ear, White)
New
CHF 119.–
Koss BT539i (Over-Ear, White)

Availability

  • approx. 5–7 days
    Currently > 5 piece(s) in stock at the supplier

If ordered immediately.
Information subject to change.

View details

Specifications

Key specifications

BluetoothYes
IsolationClosed
Battery life10 h

General information

Manufacturer Koss
Product type Headphones & Headsets
i

Headphones & Headsets

Headphones are a pair of small loudspeakers that are designed to be held in place close to a user's ears. Headphones either have wires for connection to a signal source such as an audio amplifier, radio, CD player, portable media player or mobile phone, or have a wireless receiver, which is used to pick up signal without using a cable.

More information...

Item number6148623
Manufacturer no.BT539iK
External links Manufacturer's site (en)

Colour

Colour group
Grey
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Grey

Grey (often spelled gray in the U.S., see spelling differences) describes the colours ranging from black to white. These, including white and black, are known as achromatic colours or neutral colours.

More information...

Colour designation
Grey
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Grey

Grey (often spelled gray in the U.S., see spelling differences) describes the colours ranging from black to white. These, including white and black, are known as achromatic colours or neutral colours.

More information...

Application range

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Application range

Describes the application range the device can be used for.

Application range
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Application range

Beschreibt den Anwendungsbereich eines Kopfhörers.

Standard
Main use
Music & Audio

Headphone & Headset properties

Headphone output
Stereo
Microphone
Yes

Headphone type

Headphone type
i

Headphone type

Beschreibt die Bauart des Kopfhörers.

More information...

Over-Ear
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Over-Ear

Circumaural headphones (sometimes called full size headphones) have circular or ellipsoid earpads that encompass the ears.

Fit
i

Fit

Beschreibt die Fixierungsart am Kopf der Sprechgarnitur.

Headband
Isolation
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Isolation

Beschreibt die Isolation der Kopfhörer.

Closed
i

Closed

Der Kopfhörer hat eine geschlossene Isolation.

Driver diameter
Foldable
i

Foldable

The product can be folded.

Yes

Audio properties

Frequency range
i

Frequency range

The measured, or specified, output over a specified range of frequencies for a constant input level varied across those frequencies.

10 - 20000 Hz
Sensitivity
Sound pressure
i

Sound pressure

Sound pressure is the local pressure deviation from the ambient (average, or equilibrium) pressure caused by a sound wave.

More information...

97 dB
Impedance
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Impedance

Electrical impedance, or simply impedance, describes a measure of opposition to alternating current (AC). Electrical impedance extends the concept of resistance to AC circuits, describing not only the relative amplitudes of the voltage and current, but also the relative phases. When the circuit is driven with direct current (DC), there is no distinction between impedance and resistance; the latter can be thought of as impedance with zero phase angle. Impedance is defined as the frequency domain ratio of the voltage to the current.

More information...

38 Ω (ohm)

Connections

3.5mm jack
1 x
Headphone jack details
Removable cable

Audio cable properties

Headphone cable length
1.2m
Cable management
i

Cable management

Beschreibt, wie das Kabel am Kopfhörer angebracht ist.

Single-sided
Removable cable
i

Removable cable

The cable can be removed without inpairing the operation of the device.

Yes

Power supply

i

Power supply

All power supply related details.

Power supply
Battery-operated
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Battery-operated

A rechargeable battery or storage battery is a group of one or more electrochemical cells. They are known as secondary cells because their electrochemical reactions are electrically reversible. Rechargeable batteries come in many different shapes and sizes, ranging anything from a button cell to megawatt systems connected to stabilize an electrical distribution network. Several different combinations of chemicals are commonly used, including: lead-acid, nickel cadmium (NiCd), nickel metal hydride (NiMH), lithium ion (Li-ion), and lithium ion polymer (Li-ion polymer).

Rechargeable batteries have lower total cost of use and environmental impact than disposable batteries. Some rechargeable battery types are available in the same sizes as disposable types. Rechargeable batteries have higher initial cost, but can be recharged very cheaply and used many times.

More information...

Battery life
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Battery life

Battery life will vary depending on the product configuration, product model, applications loaded on the product, power management settings of the product, and the product features used by the customer. As with all batteries, the maximum capacity of this battery will decrease with time and usage.

10 h
Standby time
i

Standby time

Beschreibt die maximale Standby-Zeit eines Gerätes im Akkubetrieb.

More information...

Charging time
i

Charging time

Zeit die benötigt wird bis ein Akkumulator eines elektrischen / elektronischen Gerätes die volle Kapazität erreicht hat.

charging input
micro USB 2.0

Delivery contents

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Delivery contents

The scope of delivery means the included accessories.

Delivery contents
Headphone cable
,
USB charging cable

Product dimensions

i

Product dimensions

Physical size of an object

Weight

Properties

Bluetooth Features
AAC
Wireless connectivity
i

Wireless connectivity

All network connectivity bluetooth, infrared ports, WLAN, UMTS etc.
Standards are listed here as well.

Bluetooth
i

Bluetooth

The device can be connected to another device via Bluetooth.


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Warranty & right to return

Warranty 24 month Bring-in

Limited right of return

Warranty and return

Please use our simplified returns and warranty process to return a product or register a warranty case. Returns and warranty

Please use our simplified warranty process to view the warranty period as well as any warranty extensions you may have purchased. This will ensure that your return or warranty case is processed quickly and effectively.

Warranty extension

Warranty extension Bring-in

Warranty upgrade to premium express service

Warranty extension Bring-in

The warranty is extended at the same conditions as the manufacturer warranty.

to 3 years CHF 35.70
to 5 years CHF 40.50

Warranty upgrade to premium express service

The device will be replaced, repaired or refunded within 24 hours.

to 2 years CHF 34.80
to 3 years CHF 70.90 *
to 5 years CHF 77.30 *

* incl. Extension of the warranty
The warranty will be extended for the respective period of time


More information about warranty extensions

Insurance

All Risk by Allianz Global Assistance

All Risk by Allianz Global Assistance

Insure your device against drop, impact, breakage and display damage as well as against damage caused by water or damp. Improper use (call and data misuse) due to theft is also covered. With each purchase you accept the general terms and conditions.

1 Year CHF 10.–
2 years CHF 17.–

Allianz Condizioni generali di assicurazione.pdf | 159.54 KB | ItalianAllianz Conditions generales dassurance.pdf | 291.72 KB | FrenchAllianz Versicherungsbedingungen.pdf | 109.63 KB | GermanAllianz Versicherungsbedingungen.pdf | 109.63 KB | English

Availability

Mail delivery

 Expected delivery time: approx. 5–7 days
Currently > 5 piece(s) in stock at the supplier

Collection

All locations

 Expected delivery time: approx. 5–7 days
Currently > 5 piece(s) in stock at the supplier

If ordered immediately.
Information subject to change.

Accessories

Headphone stands

16090 (Black)
CHF 23.–
K&M 16090 (Black)
5

Availability

Mail delivery

  • more than 10 piece(s)
    in our warehouse

PickMup

Collection

  • Basel: the day after tomorrow at 13:10h
  • Bern: today at 12:45
  • Dietikon: the day after tomorrow at 14:30h
  • Kriens: the day after tomorrow at 11:20h
  • Lausanne: the day after tomorrow at 15:40h
  • St Gallen: the day after tomorrow at 15:30h
  • Winterthur: today at 12:45
  • Wohlen: more than 10 piece(s)
  • Zurich: today at 12:30

If ordered immediately.
Information subject to change.

View details

+9

MP3 & Media player accessories

PSSEUSB20W 4x USB Charger
CHF 34.90
Velleman PSSEUSB20W 4x USB Charger
9

Availability

Mail delivery

  • more than 10 piece(s)
    in our warehouse

PickMup

Collection

  • Basel: only 1 piece(s)
  • Bern: only 1 piece(s)
  • Dietikon: only 1 piece(s)
  • Kriens: only 1 piece(s)
  • Lausanne: only 1 piece(s)
  • St Gallen: only 1 piece(s)
  • Winterthur: today at 12:45
  • Wohlen: more than 10 piece(s)
  • Zurich: only 2 piece(s)

If ordered immediately.
Information subject to change.

View details

+8

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Koss BT539i (Over-Ear, Grey) Koss BT539i (Over-Ear, Grey)