Srhythm NC25 - Noise Cancelling Headphones Manual

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

	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.) Start your mobile phone Bluetooth and find headphone Bluetooth pairing name "SrhythmNC25" to click it to pair. (the LED indicator light will be blue flashing slowly after paired successfully.) 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, or Multi-function 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 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.
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 paired successfully.)
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 switches 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;
(the LED indicator light will be green when ANC ON.)
To turn off ANC, press the ANC Button;
(the LED indicator light green color will be off when ANC OFF.)

Wired Mode

Headphones 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 still needs 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).

How to Wear

If
 your
 headphone 
has 
no
 sound
 or 
the 
microphone is not working

Please make sure that the headphone is connected before starting 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.

Only use for airplane, can not be plugged into the power socket

Headphone Specification

LED 
Indicator 
Light

* 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 2.5 hours
• Use time: 50 hours
• Bluetooth version: V5.3
• Bluetooth profile: A2DP, AVRCP, HSP, HFP
• Bluetooth range: 10m/33ft
• Waterproof rating: IPX4
• Net weight: 194g/0.42lb
• Impedance: 32Ω
• Driver diameter: Ф40mm
• 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 paired successfully.)
Hold the Multi-function Button for 3-5 seconds to turn headphone Bluetooth off.

Note: Ambient temperature exceeds the charging temperature range of 32ºF (0ºC) - 113ºF (45ºC).

If there are any issues, here are tips for you:

1. Full charge your headphone with original USB-A to USB-C 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. Or hold both Multi-function Button and "Volume Down" Button 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 re-connection 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 ALL your 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 to turn the equalizer to OFF, then the full spectrum comes through and the volume will be easily adjustable.

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 situations.
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 cable for charging and voltage within 6.3V. Power will be cut off and start protection mode when the voltage exceeds 6.3V and within 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: 32ºF (0ºC) - 113ºF (45ºC).
4. Do not submerge headphone in water.
5. Do not use corrosive cleaner/oil to clean headphone.
6. Turn off the headphone's Bluetooth and ANC function to save power when you do not use headphone.