Sennheiser HD 250BT Manuel utilisateur

HD 250BT | 1

HD 250BT

On-ear headphones

Instruction manual

Use the search function, the navigation (left) or the following links:

Start

“Product overview”

“Getting started”

“Using the headphones”

“FAQ/If a problem occurs ...”

“Specifications”

Sennheiser electronic GmbH & Co. KG

Am Labor 1

30900 Wedemark

Germany

www.sennheiser.com

Version: 11/20 A02

Important safety instructions

2 | HD 250BT

Important safety instructions

▷Read this instruction manual carefully and completely before

using the product.

▷Always include this instruction manual when passing the product

on to third parties.

▷Do not use the product if it is obviously defective or makes loud,

unusual (whistling or beeping) noise.

▷Only use the product in environments where Bluetooth® wireless

transmission is permitted.

Preventing damage to health and accidents

▷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.

▷The product generates stronger permanent magnetic

fields that could cause interference with cardiac pace-

makers, implanted defibrillators (ICDs) and other

implants. Always maintain a distance of at least 3.94"/10 cm

between the product component containing the magnet and the

cardiac pacemaker, implanted defibrillator, or other implant.

▷Keep the product, accessories and packaging parts out of reach

of children and pets to prevent accidents. Swallowing and chok-

ing hazard.

▷Do not use the product in an environment that requires your spe-

cial attention (e.g. in traffic or when performing skilled jobs).

Preventing damage to the product and malfunctions

▷Always keep the product dry and do not expose it to extreme tem-

peratures (hairdryer, heater, extended exposure to sunlight, etc.)

to avoid corrosion or deformation. The normal operating tempera-

ture is from 0 to 40 °C/32 to 104 °F.

▷Use only attachments/accessories/spare parts supplied or rec-

ommended by Sennheiser.

▷Clean the product only with a soft, dry cloth.

▷Use the product with care and store it in a clean, dust-free envi-

ronment.

Safety instructions for the lithium polymer rechargeable battery

WARNING

If abused or misused, the rechargeable batteries may leak.

In extreme cases, they may even present a risk of:

• heat generation,

• fire development,

•explosion,

•smokeorgasdevelopment.

Important safety instructions

HD 250BT | 3

Notes on data collection and processing and on firmware updates

This product stores individual settings such as the volume, the

sound profiles and the Bluetooth connection data of paired devices.

This data is required for the operation of the product and is not trans-

ferred to Sennheiser or companies commissioned by Sennheiser and

is not processed.

Using the “Sennheiser Smart Control” app, you can update the firm-

ware of the product for free via an Internet connection. If the device

on which the app is installed is connected to the Internet, the follow-

ing data is automatically transferred to and processed by Sennheiser

servers in order to provide and transfer suitable firmware updates:

hardware identifier, hardware revision number, firmware version of

the product, operating system type (Android, iOS) and version, ver-

sion of the app. The data will only be used as specified and will not

be stored permanently.

If you do not want this data to be transferred and processed, do not

connect to the Internet.

Only use rechargeable batteries and chargers

recommended by Sennheiser.

Only charge the product / rechargeable batteries at

ambient temperatures between +10 °C to +40 °C/50 °F

to 104 °F.

Do not heat the product / rechargeable batteries above

+70 °C/140 °F. Avoid exposure to sunlight and do not

throw the product / rechargeable batteries into fire.

When not using the product / rechargeable batteries for

extended periods of time, charge them regularly (about

every three months).

Switch rechargeable battery-powered products off after

use.

Dispose of defective products with built-in rechargeable

batteries at special collection points or return them to

your specialist dealer.

Important safety instructions

4 | HD 250BT

Intended use/Liability

These headphones have been designed as an accessory for Blue-

tooth compliant devices. They are intended for wireless audio com-

munication such as music playback and phone calls via Bluetooth

wireless technology.

It is considered improper use when the product is used for any appli-

cation not named in the corresponding product documentation.

Sennheiser does not accept liability for damage arising from misuse

or improper use of this product and its attachments/accessories.

Sennheiser is not liable for damages to USB devices that are not con-

sistent with the USB specifications.

Sennheiser is not liable for damages resulting from the loss of con-

nection due to flat or overaged rechargeable batteries or exceeding

the Bluetooth transmission range.

Before putting into operation, please observe the respective coun-

try-specific regulations.

Package contents

HD 250BT | 5

Package contents

Online you can find:

• this detailed instruction manual and additional information

www.sennheiser.com/download

•the Sennheiser Smart Control app for configuring the head-

phones and for additional functions

www.sennheiser.com/smartcontrol

HD 250BT on-ear headphones

USB cable with USB-C connector

Quick guide

Safety guide

A list of accessories can be found on the HD 250BT product

page at www.sennheiser.com.

Contact your local Sennheiser partner: www.sennheiser.com >

“Service & Support”.

Product overview

6 | HD 250BT

Product overview

Model: HD 250BT

Headband

Ear cups

Ear pads

Microphone

USB-C socket for charging

Volume – button (volume down)

On/off button

pressing for 3 seconds activates the Bluetooth pairing

mode

Volume + button (volume up)

LED

Right R

Left L

Product overview

HD 250BT | 7

Overview of the LED display

During operation

During phone calls

LED Meaning; the headphones

flashes blue are switched on

flashes blue 3x are connected to a device via Blue-

tooth

flashes red/

blue are in Bluetooth pairing mode

flashes red 3x

are not connected to a device via

Bluetooth or the connection has been

lost

LED Meaning

flashes blue Incoming call

flashes purple Incoming call

flashes red

Incoming call and the rechargeable

battery of the headphones is almost

empty

If the LED does not light up immediately during charging, clean

the charging socket and charge the headphones until the LED

lights up again (> 10).

Product overview

8 | HD 250BT

Notes on voice prompts

The headphones output voice prompts for various functions (see

examples below).

Voice prompt Meaning/headphones

“Power on” are switched on

“Power off” are switched off

“Connected” are connected to the device

“Lost connection” are not connected via Bluetooth

“Pairing” are in Bluetooth pairing mode

“Pairing successful” Pairing successfully completed

“Call rejected” Incoming call rejected

“Call ended” Call ended

“More than xx % playtime” Rechargeable battery has the

stated charge level

“Recharge headset” Rechargeable battery is empty.

Recharge the headphones.

“Volume min” Volume set to minimum

“Volume max” Volume set to maximum

Getting started

HD 250BT | 9

Getting started

1. Charging the rechargeable battery

The headphones' rechargeable battery is not fully charged upon

delivery. Before using the headphones for the first time, charge the

rechargeable battery for a complete charging cycle without interrup-

tion (> 10).

2. Installing the Smart Control app on your

smartphone

The Sennheiser Smart Control app allows you to use all functions

and settings of the headphones and to e.g. adjust the sound to your

liking using the equalizer (> 13).

3. Connecting the headphones to a Bluetooth

device

Connect the headphones to your smartphone via Bluetooth (> 11).

4. Putting the headphones on and adjusting the

headband

For good sound quality and best possible wearing comfort, the head-

band can be adjusted to properly fit your head (> 15).

USB-AUSB-C

“Sennheiser Smart Control”

Hold

Using the headphones

10 | HD 250BT

Using the headphones

Information on the rechargeable battery

and the charging process

The headphones have a built-in rechargeable battery. A complete

charging cycle takes up to 3.5 hours. Before using the headphones

for the first time, charge the rechargeable battery for a complete

charging cycle without interruption.

When the headphones are being charged, the LED lights up red (> 7).

Once the headphones are fully charged, the LED lights up blue.

When the battery charge drops to a critical level, a voice prompt asks

you to recharge the headphones (“Recharge headset”).

Sennheiser recommends using the supplied USB cable and a com-

patible standard USB power supply for charging the headphones.

Charging the headphones' rechargeable

battery

1. Connect the USB-C connector of the charging cable to the USB

socket of the headphones.

2. Connect the USB-A connector to a corresponding socket of a USB

power source (to be ordered separately). Make sure that the USB

power source is connected to the power supply system.

The charging process of the headphones begins. The LED dis-

plays the charge status:

LED Meaning

lights up red Rechargeable battery is being charged

lights up blue Rechargeable battery is fully charged

If the LED does not light up immediately during charging, clean

the charging socket and charge the headphones until the LED

lights up again (> 10).

Right R

3,5 HRS

USB-A

USB-C

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