Sennheiser HD 4.40 BT Review and Specs

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Common features

Product

Sennheiser HD 4.40 BT

Model

HD 4.40 BT

Brand

Sennheiser

Reviews

5541

General

Wearing style

over ear

Enclosure

closed back

Wireless

Wired

Specifications

Transducer

dynamic

Driver size, mm/inches

Impedance, Ohm

18

Frequency response, Hz

18Hz-22KHz

Total harmonic distortion (THD), %

0.5

Sensitivity (SPL), dB

113

Magnet type

Weight (headphones), g/oz

225/7.9

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

Google Assistant, Siri

App control

Control functions

volume, answer/end, play/pause, next/previous track, fast forward/rewind

Wireless connectivity

Bluetooth

Bluetooth version

4.0

aptX

aptX HD (Hi-Res Audio)

Bluetooth profiles

A2DP, AVRCP, HFP, HSP

NFC

Wi-Fi

Battery

Battery type

rechargable

Battery life, hrs

25

Charging time, hrs

2

Charging port

micro USB

Charging cable

micro USB to USB-A

Speed charge

Battery free listening mode

Battery level indicator

Additional features

Water resistance

Light indication

Additional audio features

In the box

Audio cable

Carry case

Charging cable

1/4 Adapter (6,35 mm)

Interchangeable ear pads

User manual

Manual

Sennheiser HD 4.40 BT
Sennheiser HD 4.40 BT

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