Koss Pro4S Review and Specs

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Overall
6.5

Common features

Product

Koss Pro4S

Model

Pro4S

Brand

Koss

Reviews

165

General

Wearing style

over ear

Enclosure

closed back

Wireless

Wired

Specifications

Transducer

dynamic

Driver size, mm/inches

Impedance, Ohm

35

Frequency response, Hz

10Hz-25KHz

Total harmonic distortion (THD), %

0.2

Sensitivity (SPL), dB

99

Magnet type

Weight (headphones), g/oz

180/6.4

Comfort

Adjustable headband

Foldable

Noise cancelling

Active noise cancelling

Adjustable noise cancelling level

Microphone

Built-in microphone

In-line microphone

Detachable microphone

Cables

Detachable cable

Audio cable length, cm/ft

140/4.6

Jack connection (TRS)

3.5

Balanced connection

Control

Built-in control buttons

In-line control

Touch control

Voice control

App control

Control functions

Wireless connectivity

Bluetooth

has not

Bluetooth version

has not

aptX

has not

aptX HD (Hi-Res Audio)

has not

Bluetooth profiles

has not

NFC

Wi-Fi

Battery

Battery type

has not

Battery life, hrs

has not

Charging time, hrs

has not

Charging port

has not

Charging cable

has not

Speed charge

has not

Battery free listening mode

has not

Battery level indicator

has not

Additional features

Water resistance

Light indication

Additional audio features

In the box

Audio cable

Carry case

Charging cable

has not

1/4 Adapter (6,35 mm)

Interchangeable ear pads

User manual

Manual

Koss Pro4S
Koss Pro4S

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