Sennheiser Momentum True operation manual
MOMENTUM True Wireless
True wireless stereo earphones
M3IETW (M3IETW L, M3IETW R, M3IETW C)
Instruction manual
Use the search function, the navigation (left) or the following links:
Start
“Product overview”
“Getting started”
“Using the earphones”
“FAQ/If a problem occurs ...”
“Specifications”
Sennheiser electronic GmbH & Co. KG
Am Labor 1
30900 Wedemark
Germany
www.sennheiser.com
Version: 08/18 A01
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 an obviously defective product.
▷ 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.
▷ 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.
▷ The product generates stronger permanent magnetic
fields that could cause interference with cardiac pacemakers, implanted defibrillators (ICDs) and other
mplants. Always maintain a distance of at least 3.94"/10 cm bet-
i
ween the product component containing the magnet (earbuds
and ch
brillator, or other implant.
▷ Keep the product, accessories and packaging parts out of reach
of children and pets to prevent accidents. Swallowing and choking hazard.
▷ Do not use the product in an environment that requires your spe-
cial attention (e.g. in traffic or when performing skilled jobs).
arging case) and the cardiac pacemaker, implanted defi-
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.)
o avoid corrosion or deformation.
t
▷ Use only attachments/accessories/spare parts supplied or
recommended by Sennheiser.
▷ Clean the product only with a soft, dry cloth.
Safety instructions for Lithium r
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.
echargeable batteries
2 | MOMENTUM True Wireless
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 and on firmware updates
This product stores individual settings such as the volume, the
sound
profiles 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.
Using the “Sennheiser Smart Control” app, you can update the firmware of the product for free via an Internet connection. If the device
on which
the app is installed is connected to the Internet, the following data is automatically transferred to and processed by Sennheiser servers in order to provide and transfer suitable firmware
pdates: MAC address, Bluetooth Low Energy UUID, Bluetooth name
u
of the product, firmware version of the product and version 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
onnect to the Internet.
c
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 an
d 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 improper use or misuse 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.
MOMENTUM True Wireless | 3
Package contents
Package contents
Earbud R for right ear (M3IETW R) and
earbud L for left ear (M3IETW L)
Charging case with built-in rechargeable battery for
the earbuds (M3IETW C)
USB charging cable with USB-C and USB-A
connector, approx. 0.25 m
Silicone ear adapters (size XS, S, M (pre-mounted to
the earphones) and L
Quick guide
Safety guide
Online you can find:
• this detailed instruction manual and ad
(www.sennheiser.com/download)
• the Sennheiser Smart Control app for configuring the headphones and for additional functions
(www.sennheiser.com/device-control-app)
A list of accessories can be found on the MOMENTUM True
Wireless product page at www.sennheiser.com. Contact your
local Sennheiser partner: www.se
Support”.
ditional information
nnheiser.com > “Service &
4 | MOMENTUM True Wireless
Product overview
1 2 394 5
7
7
8
6
Product overview
Charging case
M3IETW C
LED
displays the charging process/charge status of the
re
chargeable battery of the charge case or of the earbuds
(when inserted into the charging case)
Input for USB-C connector
for charging the rechargeable batteries
LED button
activates the LED display for 5 seconds
Built-in rechargeable battery for charging the earbuds on
the go
Type plate
Charging compartment for the left earbud L
Magnetic holders
Charging compartment for the right earbud R
Charging contacts
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Product overview
R
L
CC
A
M3IETW L M3IETW R
A
DDE
F
00
F
F
G
B
D
DE
H
H
Earbuds
M3IETW L and M3IETW R
Touch control panel
Changeable silicone ear adapters
Left earbud L (slave earbud, receives signals from the right
earbud)
Status LED
Magnetic holders
Charging contacts
Microphones for the perception of ambient noise
(“Transparent Hearing”) and for phone calls
Right earbud R (master earbud, controls the Bluetooth
connection to the smartphone and to the left earbud)
Built-in rechargeable battery
Overview of the LED indications of the charging case
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When a USB cable is connected, the LED of the charging case permanently displays the charging process:
2
Press
1x
Product overview
LED
pulses
yellow
lights up
green
flashes
red
Charging case WITH
earbuds inserted
... earbuds and charging case are being
arged
ch
... earbuds and charging case are fully
charged
... a charging error/
battery er
ror has
been detected in at
least one earbud
(> 26)
Charging case
WITHOUT earbuds
inserted
... charging case is
being charged
... charging case is
fully charged
... a charging error/
attery error has
b
been detected in the
charging case (> 26)
If you press the LED button and no USB cable is connected, the LED
of the charging case displays the battery charge status or the charging process of the earbuds for 5 seconds:
Charging case
WITHOUT earbuds
inserted
... charging case is
charged between
50-100 %
LED
lights up
green
Charging case WITH
earbuds inserted
... earbuds are fully
charged
... earbuds are being
pulses
yellow
charged via the
rechargeable battery of the charging
–
case
... rechargeable bat-
lights up
yellow
tery of the charging
se is empty and
ca
the earbuds are not
... charging case is
rged less than
cha
50 %
fully charged
... rechargeable bat-
lights up
red
teries of the earbuds
and the charging
case are empty
... a charging error/
flashes
red
battery er
been detected in at
least one earbud
ror has
(> 26)
... rechargeable battery of the charging
case is empty
... a charging error/
attery error has
b
been detected in the
charging case (> 26)
MOMENTUM True Wireless | 7
Product overview
3x
3x
If the LED does not light up, the rechargeable battery is deep
discharged. Charge the rechargeable battery until the LED
lights up again (>
12).
Overview of the LED indications of the earbuds
LED Meaning; the earbud ...
flashes red-blue
for approx. 1 min
flashes blue 3
times
flashes red 3
times
lights up blue
lights up red
flashes red
quickly
flashes red
slowly
... is in Bluetooth pairing mode
... Bluetooth pairing successful
... Bluetooth pairing failed
... is connected to a device via Bluetooth
(master earbud (R) is connected
the smartphone, slave earbud (L) is
connected to the master earbud (R))
... is not connected to a device via
Bluetooth or
been lost
(master earbud (R) is not connected
to a smartphone, slave earbud (L) is
not connected to the master earbud
(R))
... rechargeable battery is almost
empty
... system error. Perform a restart (>
28).
the connection has
to
When you insert the earbuds into your ears, the LEDs of the
earbuds automatically go off after approx. 5 seconds.
8 | MOMENTUM True Wireless
Product overview
Notes on voice prompts
The earphones 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/earbuds...
“Power on”
“Power off” ... switch off
“Connected”
“No connection” ... not connected via Bluetooth
“Pairing”
“Pairing cancelled” ... Bluetooth pairing cancelled
“Pairing successful”
“Pairing failed” ... Bluetooth pairing failed
“Recharge headset”
“Call rejected” ... incoming call rejected
“Call ended”
“Volume min” ... volume set to minimum
“Volume max” ... volume set to maximum
... are switched on
... connected via Bluetooth
... is in Bluetooth pairing mode
... Bluetooth pairing successful
... rechargeable battery almost
empty – recharge the battery
... call ended
MOMENTUM True Wireless | 9
Getting started
ON
Getting started
1. Waking up the earphones and the charging
case and charging the rechargeable batteries
Upon delivery, the rechargeable batteries of the earphones and the
ch argin g case a re in sleep mo de and h ave to be woken u p by con necting them to a power source once.
▷ Insert the earphones into the charging case.
▷ Connect the USB-C cable to the charging case and to a USB
power source (> 12).
The earphones and the charging case are woken up and the
chargeable batteries are being charged. The earphones are
re
now ready for use.
2. Installing the Smart Control app on your
smartphone
The Sennheiser Smart Control app allows you to use all functions
and settings of the earphones and to e.g. adjust the sound to your
liking using the equalizer (> 15).
10 | MOMENTUM True Wireless
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