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HD 4.50R
User Manual
36 pgs6.43 Mb2
User Manual
36 pgs6.48 Mb0
User Manual [fr]
37 pgs6.39 Mb0
User Manual [nl]
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Table of contents
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Sennheiser HD 4.50R, HD 4.50BTNC User Manual

HD 4.50BTNC HD 4.50R
Wireless headphones
SCBT7
Instruction manual
Contents
Contents
Overview of the headphones .................................................................................... 7
Overview of pictograms ............................................................................................. 7
Overview of the LED indications ............................................................................... 9
Overview of buttons .................................................................................................10
Charging basics ..........................................................................................................12
Pairing the headphones ...........................................................................................14
Adjusting the headband ..........................................................................................18
Switching the headphones on ................................................................................19
Switching the headphones off ................................................................................19
Adjusting the volume ...............................................................................................20
Using NoiseGard .......................................................................................................21
Controlling music playback ......................................................................................23
Voice control function ...............................................................................................26
Replacing the ear pads .............................................................................................28
Storage and handling ...............................................................................................29
Replacing/removing the rechargeable battery ...................................................30
Leaving the Bluetooth transmission range ..........................................................32
Clearing previously paired devices .........................................................................32
HD 4.50BTNC/HD 4.50R | 1

Important safety instructions

Important safety instructions
X Read this instruction manual carefully and completely before using the
product.
X Always include this instruction manual when passing the product on to third
parties.
X Do not use an obviously defective product.
X Only use the product in environments where Bluetooth® wireless transmission
is permitted.
Preventing damage to health and accidents
X Protect your hearing from high volume levels. Permanent hearing
damage may occur when headphones are used at high volume levels for long periods of time. Sennheiser headphones sound exceptionally good at low and medium volume levels.
X Keep the headphones at least 10 cm/3.94" from cardiac pacemakers or
implanted defibrillators. The headphones contain magnets that generate a magnetic field which could cause interference with cardiac pacemakers and implanted defibrillators.
X Keep the product, accessories and packaging parts out of reach of children
and pets to prevent accidents and choking hazards.
X Do not use the product in situations which require special attention (e.g. in
traffic or when performing skilled jobs).
Preventing damage to the product and malfunctions
X Always keep the product dry and do not expose it to extreme temperatures
to avoid corrosion or deformation. The normal operating temperature is from 10 to 40°C/50 to 104°F.
X Only use attachments/accessories/spare parts supplied or recommended by
Sennheiser.
X Clean the product only with a soft, dry cloth. X Use the product with care and store it in a clean, dust-free environment.
2 | HD 4.50BTNC/HD 4.50R
Important safety instructions
Intended use/Liability
These wireless headphones are designed for use with mobile devices (e.g. mo­bile music players, mobile phones, tablets) that support wireless communication via Bluetooth. Compatible Bluetooth devices include those that support the fol­lowing profiles: Hands Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), and Audio/Video Remote Control Profile (AVRCP).
It is considered improper use when this product is used for any application not named in the associated instruction manuals and product guides.
Sennheiser does not accept liability for damage arising from abuse or misuse of this product and its attachments/accessories.
Safety instructions for the Lithium-Polymer battery pack
WARNING
In extreme cases, abuse or misuse of the Lithium-Polymer battery pack can lead to:
• explosion
• fire development
Dispose of products with built-in rechargeable batteries at special collection points or return them to your specialist dealer.
Only use rechargeable batteries and chargers recommended by Sennheiser.
Charge products with built-in rechargeable batteries at ambient temperatures between 10 and 40°C/50 and 104°F .
Switch battery-powered products off after use.
When not using the product for extended periods of time, charge its built-in rechargeable batteries regularly (about every 3 months).
Do not heat above 70°C/158°F, e.g. do not expose to sunlight or throw into fire.
Do not charge a product with built-in rechargeable batteries if the product is obviously defective.
• heat generation or
• smoke or gas development
HD 4.50BTNC/HD 4.50R | 3
The HD 4.50BTNC/HD 4.50R Wireless headphones
The HD 4.50BTNC/HD 4.50R Wireless headphones
The HD 4.50BTNC/HD 4.50R Wireless headphones offer great sound quality for every day listening on the move. These headphones are the perfect companion for your mobile devices, providing you with unrivalled listening pleasure and easy communication with their NoiseGard™ Active Noise Cancellation feature, long-lasting battery life, and robust, foldable design.
Features
• Closed circumaural design featuring Bluetooth® wireless technology
• Robust, foldable headband for easy storage on the go
• NoiseGard™ Active Noise Cancellation for optimum isolation from background
noise and outstanding audio performance
• Immediate pairing to smart devices using NFC
• Up to 25 hours battery life
• Comes with an attachable audio cable for use in environments where
Bluetooth® connectivity is not permitted
4 | HD 4.50BTNC/HD 4.50R
The HD 4.50BTNC/HD 4.50R Wireless headphones
Bluetooth
The headphones comply with the Bluetooth 4.0 standard and are compatible with all Bluetooth 1.1, 1.2, 2.0, 2.1, 3.0 and 4.0 devices with the following Bluetooth profiles: HFP (Hands-Free Profile), HSP (Headset Profile), AVRCP (Audio Video Remote Control Profile) and A2DP (Advanced Audio Distribution Profile). The headphones provide wireless freedom to give hands-free convenience during phone calls or when listening to music.
NFC
Near Field Communication (NFC) is a short-range wireless technology that en­ables connection and communication between NFC-capable electronic devices by placing them near one another or with a single touch.
NoiseGard
The NoiseGard™ active noise compensation system is based on the principle of cancelling out sound using “anti-sound”. Tiny microphones pick up low­frequency ambient noise near the ear. The NoiseGard electronics use this noise to generate a sound wave which is the exact opposite, the effect being that the polarity reversed signal cancels most of the outside noise.
aptX®
With aptX® audio coding, you can be assured of crisp, pure and full stereo sound. It allows you to not only hear, but experience and feel the audio as it was intended. Utilizing aptX®, Bluetooth technology can now offer wireless audio quality that is indistinguishable from the highest quality wired connection.
HD 4.50BTNC/HD 4.50R | 5

Package includes

Package includes
Headphones
Carry case
Audio cable with 2.5 mm and 3.5 mm jack plug
USB charging cable with micro-USB connector
Quick guide
Safety guide
A list of accessories can be found at www.sennheiser.com. For information on suppliers, contact your local Sennheiser partner: www.sennheiser.com > “Sales Partner”.
Quick guide
Safety guide
6 | HD 4.50BTNC/HD 4.50R

Product overview

Product overview

Overview of the headphones

1
2
3
5
4
6
7
8
1 Headband 6 Power button 2 Ear pads 7 Multifunction button 3 Ear cups 8 Volume +/- buttons 4 NFC panel 9 Audio input 5 LED 0 Micro-USB input

Overview of pictograms

Pictograms for pressing a button
9
0
Pictogram Meaning
1x
2x
5s
Press and immediately release the button
Press the button twice
Press the button and hold for 5 seconds
HD 4.50BTNC/HD 4.50R | 7
Product overview
Pictograms for the LED
Pictogram Meaning
The LED lights up
The intervals signify flashing The LED lights up/flashes continuously
3s
The time the LED lights up before blinking
Examples of pictograms that may be used in this manual:
Pictogram Meaning
The LED flashes continuously
3s
2s 2s
The LED lights up for 3 seconds, then off, and repeat
The LED lights up, then off for 2 seconds, and repeat
The LED lights up continuously
1s
The LED continuously flashes blue and red per second
The pictogram „i“
Notes marked with the pictogram “i” provide useful information on the use of the headphones.
8 | HD 4.50BTNC/HD 4.50R
Product overview

Overview of the LED indications

LED indications during operation
LED Meaning
The headphones switch on Pairing/connecting with a device is successful
The headphones switch off The headphones are disconnected from the
device The headphones are outside the Bluetooth
range of the device Pairing with a device is unsuccessful
1s
The headphones are in pairing mode The device is/devices are successfully cleared
from the headphones NoiseGard is activated/deactivated
(Bluetooth connection)
2s 2s
The headphones are in idle mode (headphones are paired but not connected to the device)
NoiseGard is activated (audio cable connection with sufficient battery life)
LED indications during calls
LED Meaning
Incoming call
Incoming call with an almost empty battery
HD 4.50BTNC/HD 4.50R | 9
Product overview
button

Overview of buttons

Power button
Press Function Page
Switches the headphones on and off 19
2s
1x
Activates/deactivates NoiseGard (audio cable connection with sufficient battery life)
21
Multifunction button
Press Function Page
1x
2x
2s
Accepts/ends a call Accepts an incoming call and holds the active call Plays/pauses a track
Redials the last number called Holds/unholds a call Accepts an incoming call and ends the active call Toggles between 2 active calls
Rejects a call Activates the voice control Transfers a call between the smartphone and the
24 24 23
25 24 24 24
24 26 25
headphones Plays the next track 23
10 | HD 4.50BTNC/HD 4.50R
Plays the previous track 23
Rewinds a track 23
Fast-forwards a track 23
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