Srhythm NiceComfort 25 (NC25) Headphones User Manual
- June 9, 2024
- Srhythm
Table of Contents
NiceComfort 25 (NC25) Headphones
NiceComfort 25(NC25)
User Manual
User Manual
Safety instructions
Hearing safety:
1.Headphones can’t be used during charging for your safety.
2.DON’T use the headphones for any other purpose while driving.
3.Please use cautiously and stop using headphone in dangerous situation.
4.Please do not listen for a long time at high volume to avoid hearing damage.
5.For your safety,please do not turn the volume too high while running outside to ensure that you can hear sound in your surroundings.
6.Clean only with a dry cloth.
Operation Safety:
1.Use original or certified cables for charging and voltage within 6.3V.Power will be cut off and start protection mode when the voltage exceed 6.3V and within 36V.Headphone will be broken when the voltage over 36V.
2.Keep away from children to avoid danger from improper use.
3.Headphones can’t be charged or turned on in the extreme temperature. Please use headphones within the operating temperature range: 32° F (0°C) – 113° F (45°C).
4.Do not submerge headphone in the water.
5.Do not use corrosive cleaner/oil to clean headphone 6.Turn off headphone Bluetooth and ANC function to save power when you do not use headphone.
What’s in the Box
At a Glance
How to Use
Use ANC Function
Press the ANC Button to turn Active Noise Cancellation ON/OFF
(the LED indicator light will be green when ANC ON.)
Use Bluetooth Function
1.Hold the Multi-function Button for 3-5
seconds to turn headphone Bluetooth on, then
enter pairing mode.(the LED indicator light will
be blue and red flashing quickly.)
2.Start your mobile phone Bluetooth and find
headphone Bluetooth pairing name “Srhythm
NC25” to click it to pair.(the LED indicator light
will be blue flashing slowly after paired
successfully.)
3.Hold the Multi-function Button for 3-5
seconds to turn headphone Bluetooth off.
Press to adjust volume. Long press to
skip to next/previous song.
Long press the Volume Up and Volume Down
Buttons for 5 seconds to clear the pairing.
Press the Multi-function Button to
play/pause music or answer/end call.
Double-press the Multi-function Button to
Reject an incoming call or Dial out the last call.
Press the Multi-function Button three times to
turn on/off the low-latency game mode.
Function Details
Easy Pairing
1. Hold the Multi-function Button for 3-5 seconds to
turn headphone Bluetooth on,then enter
3. Turn on your mobile phone Bluetooth. Search for
headphone Bluetooth signal on mobile phone and
click “Srhythm NC25” to pair.(the LED indicator light
will be blue flashing slowly after pairing successfully.)
pairing mode.(the LED indicator light will be blue and
red flashing quickly.)
2. Keep headphone and your mobile phone as close
as possible during pairing process.
4. If you are asked for a password/PIN code during
pairing procedure, please enter “0000” (four zeros).
Pair to the Second Bluetooth Device
1. Please make sure that headphone is connected to
the first Bluetooth device successfully and music is
not playing.
2. Hold the Multi-function button until the
headphone switch off and continue with the steps
“Easy Pairing”(Let the headphone re-enter pairing
mode,the LED indicator light will flash blue and red
alternately).
3. Pair headphone with the second device according
to “Easy Pairing” steps.
4. Return to the first Bluetooth device and pair it with
headphone again. Now both of your devices are
paired with headphone.
Active Noise Canceling(ANC) ON/OFF
To turn on ANC, press the ANC Button;
To turn off ANC, press the ANC Button;
(the LED indicator light green color will be off when
ANC OFF.)
(the LED indicator light will be green when ANC ON.)
Wired Mode
Headphone support AUX input for wired external
audio source connection. Simply turn headphone
Bluetooth off and plug in the audio cable.For any
ANC Bluetooth headphone,it is still need battery
power support for wired mode.
ANC also works in wired mode. Microphone only
works in Bluetooth mode, not for wired mode.
Buttons can’t be used in wired mode (Except the
ANC Button).
Voice Dialing
Press both “Volume Up” and “Volume Down” buttons
simultaneously to activate voice dialing function
(compatible with iPhone Siri and selected Android
voice dialing software).
Airplane Adaptor Connection
Connect the Airplane Adaptor to audio socket(double holes) of aircraft
seat,use 3.5mm
audio cable to connect with your headphone and Airplane Adaptor.
Warning: Only use for airplane, Can not be plugged into the power socket
Headphone Specification
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LED Indicator Light
Pairing: Blue and red lights flash alternately Paired: Blue light flashes
Playing:Blue light slowly flashes
Charging: Red light turns on
Full Charge: Red light turns off or Blue light turns on
Battery Low: Red light turns on with voice prompt ANC ON: Green light turns on
ANC OFF: Green light turns off
Bluetooth OFF: Blue and red lights turn off
- Please kindly note that perhaps sometimes these LED indicator light color will be mixed to become other colors(pink,purple,etc.) occasionally.
Technical Specification
·Product name: Srhythm NC25
•Battery capacity: 1000mAh
•Input: 5V/1A
•Chip: ATS3015
•Charging time: About 2 hours
•Use time: 50 hours
•Bluetooth version: V5.0
•Bluetooth profile: A2DP, AVRCP, HSP, HFP
•Bluetooth range: 10m/33ft
•Waterproof rating: IPX4
•Net weight: 180g
•Impedance: 32 Ω
•Driver diameter: Φ40mm
•Frequency response: 20–20KHz
Charging
Use the included Type-C charging cable to connect to
headphone Charging Port. Connect the other end of charging
cable to a computer USB port or USB wall charger under 6.3V
voltage. Turn off headphone Bluetooth and ANC function
before charging. Headphones can’t be used during charging
for your safety. The LED indicator light will be off or blue color
when full of charge basing on headphone turn off status.
Start your mobile phone Bluetooth and find headphone
Bluetooth pairing name “Srhythm NC25” to click it to pair.(the
LED indicator light will be blue flashing slowly after pairing
successfully.)
Hold the Multi-function Button for 3-5 seconds to turn
headphone Bluetooth off.
NOTE: Ambient temperature exceeds the charging
temperature range of 32° F (0°C) – 113° F (45°C).
If any issues, here tips for you:
1.Full charge your headphone with original USB-A to USBC
charging cable ( not USB-C to USB-C cable)and 5-10W
power wall charger (don’t use fast charger)
2. Reset headphone by inserting audio cable into
headphone audio socket then removing it. Or the
upgraded NC25 headphones would be reset automatically
when charging.
Delete Pairing: Hold both “Volume Up” and “Volume
Down” buttons simultaneously for 5 seconds.
Q&A
1. Q: Why can’t headphone pair with my mobile phone?
A: Please check if your headphone is in pairing mode or reconnection
mode, check if Bluetooth search function of your
Bluetooth device is turned on, if all done, then go to Bluetooth
menu of your Bluetooth device, delete/ignore the headphone
Bluetooth pairing name “Srhythm NC25” . After that, you can try to
reconnect Bluetooth according to above “Easy Pairing” steps.
2. Q: Why can’t headphone turn on?
A: Please double check the battery status of your headphone.
3. Q: Can I replace battery in the headphone?
A: No, you can not.Headphone uses a built-in non-detachable Li-
Polymer battery that can’t be replaced.
4. Q: Can I use headphone while driving?
A: For your safety,we strongly recommend that you do not use
headphone while driving to avoid distraction.
5. Q: Why does headphone sometimes disconnects with Bluetooth device within 10 meters?
A: Please check if there are any metal materials or obstacles within
a relatively close range or your surroundings that perhaps
interfering with Bluetooth connection.This may happen because
Bluetooth is a radio technology which is sensitive to objects
between headphone and other devices.
Delete the Bluetooth pairing name on your ALL devices(it will
toggle between your connected devices due to multi-point
connection),restart it.then reset your headphone by inserting the
included audio cable into headphone audio socket and removing
it(sometimes need to insert several times to reset
successfully),then reconnect it.
6. Q: Why can’t I hear any sound from my computer or mobile
phone?
A: Please check if output channel of your computer supports
A2DP profile. Also check the volume settings on your headphone
and computer/mobile phone.
7. Q: Why am I unable to use headphone to control the volume
of a track playing on an APP on my mobile phone?
A: Due to configurations of different application
software,headphone may not be completely compatible with some APPs.
8. Q: What do I do if Bluetooth can not close or open?
A: Please reset Bluetooth function of headphone by inserting an
audio cable into headphone audio port, then removing it. Before
re-connecting, kindly remember to delete/ignore headphone
Bluetooth pairing name “Srhythm NC25” on your mobile phone.
9. Q: Why does Bluetooth turn off when I connect an audio cable?
A: This is one of our special features. When users insert an audio
cable into headphone audio port, all Bluetooth feature buttons
stop working and Bluetooth turns off. But, Bluetooth will be
available again when audio cable is moved.
10. Q: Why can’t I turn headphone on/off?
A: Please note that ANC and Bluetooth are indicated by the same
LED indicator light(but different light color), with a green light for
ANC and a blue light for Bluetooth. If you need to turn Bluetooth
on/off, you can turn off ANC firstly in case that you make confused
by the color lights. But you will be very familiar with the light color
meaning after using few times because it is simple and easy.
11. Q: Why does audio quality become poor on Windows PC?
A: Some customers have mentioned poor audio quality on
Windows PC. Please note that there are “Headset” and
“Headphone” modes you can toggle by changing your output
device. Selecting “Headphone Mode” will drastically improve the
audio quality. “Headset Mode” is designed for highly compressed
VOIP calls,
etc. That’s not the fault of headphone product, that’s
just the limitation of that protocol. If you are in “Headphone
Mode” ,the audio quality is fantastic.
12.Q：Why is the headphone sound so low?
A: Increase both device and headphone volume. For some
software such as SPOTIFY, you may need turn the equalizer to
OFF, then the full spectrum come through and the volume will be
easily adjustable.
FCC Caution:
Any Changes or modifications not expressly approved by the
party responsible for compliance could void the user’s
authority to operate the equipment.
This device complies with part 15 of the FCC Rules. Operation
is subject to the following two conditions: (1) This device
may not cause harmful interference, and (2) this device must
accept any interference received, including interference that
may cause undesired operation.
IMPORTANT NOTE:
NOTE: This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and
can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no
guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful
interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more
of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits
set forth for an uncontrolled environment .This equipment
should be installed and operated with distance ＜5mm
between the radiator& your body.
ISEDC warning
This device complies with Innovation, Science, and Economic
Development Canada license-exempt RSS standard(s).
Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this
device must accept any interference, including interference
that may cause undesired operation of the device.
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>