Sennheiser CX150BT, SEBT2 User manual
CX 150BT
In-Ear Wireless
Model: SEBT2
Instruction manual
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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: 12/20 A02
Important safety instructions
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.
▷ Do not insert the earphones too deep into your ears and never
insert them without ear adapters. Always remove the earphones
slowly and carefully from your ears.
▷ 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).
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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.
▷ Use only attachments/accessories/spare parts supplied or rec-
ommended by Sennheiser.
▷ Clean the product only with a soft, dry cloth.
Safety instructions for Lithium-Polymer rechargeable batteries
WARNING
If abused or misused, the rechargeable batteries may leak.
In extreme cases, they may even present a risk of:
•explosion,
• fire development,
• heat generation,
•smoke or gas development.
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Important safety instructions
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.
Do not heat above 60 °C/140 °F, e.g. do not expose to
sunlight or throw into fire.
When not using the product for extended periods of
time, charge its built-in rechargeable battery regularly
(about every 3 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.
Notes on data collection and processing
This product stores individual settings such as the volume and the
Bluetooth addresses of paired devices. This data is required for the
operation of the product and is not transferred to Sennheiser or com
panies commissioned by Sennheiser and is not processed.
Intended use/Liability
These headphones have been designed as an accessory for Bluetooth compliant devices. They are intended for wireless audio communication such as music playback and phone calls via Bluetooth
wireless technology.
It is considered improper use when the product is used for any application 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 consistent with the USB specifications. Sennheiser is not liable for damages resulting from the loss of connection due to flat or overaged
rechargeable batteries or exceeding the Bluetooth transmission
range.
Before putting into operation, please observe the respective country-specific regulations.
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CX 150BT | 3
Package contents
Package contents
Earphones
USB charging cable with USB-C and
USB-A connector
Silicone ear adapter set in the following sizes:
XS, S, M (pre-mounted upon delivery) and L
Quick guide
Safety guide
Online you can find:
• this detailed instruction manual and additional information
(
www.sennheiser.com/download)
• the Sennheiser Smart Control app for getting to know the headphones (www.sennheiser.com/smartcontrol)
You can find a list of accessories on the CX 150BT product page
at
www.sennheiser.com.
Contact your local Sennheiser partner: www.sennheiser.com >
“Service & Support”.
4 | CX 150BT
Product overview
*
ON
OFF
PAIRING
MUSIC
TELEPHONE
6
M
1
3
2
4
5
Right R
Left L
6
7
4
8
Product overview
Headphones
CX 150BT
Model: SEBT2
Earphones
LED
Volume + button (volume up)
Multi-function button
Volume - button (volume down)
USB-C socket for charging the rechargeable battery
Cover for USB-C socket
Microphone
CX 150BT | 5
Product overview
Overview of the LED indications of the headphones
LED Meaning; the headphones
lights up red are being charged
lights up blue are fully charged
flashes blue are switched on
flashes red-blue
approx. 1 min
flashes blue Bluetooth pairing successful
flashes red Bluetooth pairing failed
flashes blue
pulses red
approx. 3 sec
flashes red
flashes red are switched off
If the LED does not light up immediately during charging, clean
the charging socket and charge the headphones until the LED
lights up again (
> 9).
are in Bluetooth pairing mode
are connected to a device via Bluetooth
are not connected to a device via
Bluetooth or the connection has
been lost
rechargeable battery is almost
empty
Notes on voice prompts
6 | CX 150BT
The headphones output voice prompts for the following functions.
Using the Smart Control app, you can change the language of the
voice prompts, choose between voice prompts and beep sounds, or
deactivate the status messages with a few exceptions (e.g.
rechargeable battery is empty).
Voice prompt Meaning/headphones
“Power on” are switched on
“Power off” are switched off
“Device (1) (2) connected” are connected to device 1 or 2
“Lost connection” are not connected via Bluetooth
“Pairing” are in Bluetooth pairing mode
Product overview
Voice prompt Meaning/headphones
“Pairing successful” Bluetooth pairing successful
“Pairing failed” Bluetooth pairing failed
“Call rejected” incoming call rejected
“Call ended” call ended
“Mute on” Microphone is muted, active call is
put on hold
“Mute off” Microphone is reactivated
“Recharge headset” Rechargeable battery is empty.
Recharge the headphones.
“Volume min” volume set to minimum
“Volume max” volume set to maximum
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