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NU REPUBLIC True Wireless Earphone NU512 Manual

NU REPUBLIC True Wireless Earphone NU512 Manual Image




Thank you for purchasing Flo True Wireless Earphones. This guide is provided to help you get started quickly with your true wireless earphones: please read it carefully and save it for your future reference.


Read the instruction manual carefully and completely before using the product.


  • Protect your hearing from high volume levels. Permanent hearing damage may occur when earphones are used at high volume for prolonged periods of time.
  • Don’t charge them with high voltage adaptors.
  • Don’t allow children or infirm to play with your earphones without adult supervision.
  • Don’t use the product in an environment that requires special attention (e.g. in traffic).
  • Don’t use earphones near water. Clean using a dry or slightly moist cloth.
  • Store earphones at room temperature.
  • Don’t use in extremely dry environments as it leads to static discharge during usage.
  • Don’t expose your earphones to temperatures above 40 degrees. Keep out of direct sunlight.
  • Don’t attempt to repair the product yourself. It will void the product warranty.
  • Don’t drop, puncture or expose your earphones to excessive trauma.
  • Always press all buttons carefully. Don’t mishandle your earphones.
  • Don’t place near object generating a strong magnetic field.
  • Use only the supplied charging cable. Unplug the device when not in use or during a lightning storm.
  • Don’t expose earphones to excessive heat or fire. INTENDED USE/LIABILITY

Nu Republic does not accept liability for damage arising from improper use or misuse of this product and its attached accessories.


Answer The Cal- Click on the L/R ear

Hang Up The Call-Click on the L/R ear

Last Song- Double-Click The auxiliary ear switch
Next Song- Double-Click The Main Ear Switch

► Play Song- Click on the LIP ear

Pause Song- Click on the L/R ea’

Volume Triple Click on the main ear
— – Volume- Click on the secondary ear
Siri- Long Press L/R ear for 1 Second

On/Off- Long Press L/R ear for 3 Seconds


  • Flo True Wireless Earphones
  • 3 Sets of Eargels in 3 sizes
  • Type-C Charging Cable
  • Charging/ Storage Case -User Manual


A.Touch Controls
B.Indicator Light
C.Charging Port
D.Silicone Earphones Cap
E. Sound Hole

A. Left Ear
B. Right Ear
C. Charging Point
D. Type-C Chargin


Turn on the two earphones (with a power-on prompt), and after about 5 seconds, the two earphones will automatically pair (with a pairing prompt). After the pairing is successful, the red and blue lights alternately flash for the main ear. and the off light is the secondary ear, Then turn on the Bluetooth device of the mobile phone, search for the pairing name and click Connect to use the pairing mode. (After the connection is successful and in the working state, neither headset lights up)


  • Put the headset into the charging box. At this time, the indicator light of the headset is always red, the indicator light of the charging box is
  • Press and hold the key of the two headphones at the same time for about 3 seconds. At this time, the red light is on to turn off the headphones;
  • When the headset is disconnected from the phone for more than 5 minutes, the headset will automatically turn off;


  1. After the earphones are successfully paired with the mobile phone for the first time, you can use any single ear or both ears when you use it again. The earphone will automatically switch between the primary and the secondary ear without re-pairing.
  2. After the Left and right earphones are In the TWS pairing mode. double-click any pair of earphones to pair, and double-click the earphones to make it the main earphone. After the pairing is successful, red and blue lights will start alternately flashing.
  3. After pairing the left and right earphones with double-click any of the earphones again to clear the TWS pairing. If the left and right earphones cannot be paired. please clear the pair of left and right earphones first. and then re-do the TWS pairing operation.


  1. Takeout the single earphones or both earphones from the charging case, and the earphone will automatically connect back to the last time the phone is connected
  2. If the earphones are powered off or not in the charging case, put the earphones back into the charging case to activate them and then take them out again: or press and hold the earphones multifunction key to turn them on. the earphones will automatically connect back with the mobile phone.


  1. To charge the earphones: Put the earphones into the charging case separately. the red light of the earphones and the blue light of the charging case will always be turned on. indicating that the charging is in progress. and the indicator light will be turned off after the charging is completed.
  2.  To charge the charging case: Insert the Type USB c: charging cable to charge the charging case. During the charging process, the red indicator light flashes, and the red light will remain on after the char4ng is completed


Bluetooth Version 5.0
Bluetooth Protocol HSP, H FP, A2DP, AVRCP
Working Distance 10m / 33Ft
Music Working Time 4-5 hours’
Standby Time 130 hours’
Charging Time 1 hour’
Earbuds Battery Capacity 50mAh
Charging Case Battery Capacity 300rnAh
Raying System Os and Android
Support Function Hands-free calling,Sri Vote antra Google Voice Assistant
Frequency 20Hz-20KHz
Earbuds Weight 42 g
Charging Case Weight 29 g
Charging Case Charging Port Type-C
Input Specifications 5V 500mA
Charging Time for Earphones 3 Times
Earbud Product Size 22SrnmX16rnmX 24mrn
Charging Case Product Size 805mmX39mmX 29mm


  1. Support Al intelligent voice function, support voice assistant function of iOS and android
  2. In-ear design, comfortable and not easy to fall
  3. One-touch button design, more convenient than other buttons on TWS earphones.
  4. Equipped with charging case.
  5. When the mobile phone has an incoming call, the headset is automatically turned on and answered when it is picked up from charging
  6. Support iOS system and Android system power
  7. Hi-fi sound effect with built-in mm neodymium drivers.
  8. Pair automatically after taking out from charging


If you do not charge the earphones for a long time, the battery life will be greatly shortened. It is recommended that you charge the earphones at least once a month.


It provides ear-tips in small/medium/large three sizes, made from premium grade rubber.
Select an ear-tip that provides the best fit and sound isolation. It should be easy to insert, fit comfortably, and easy to remove.


For proper treatment to avoid harmful effects on human health and the environment, please contact your local municipality, your waste disposal service or the point of sale where you purchased the items.

Nu Republic warrants that the product at the time of its original purchase is free of defects in material and workmanship.

This warranty is subject to the following terms

  • The warranty is given only to the original purchaser of the product (“customer”)
  • The warranty will be applicable for 6 months from the date of original purchase or 18 months from the date of import as mentioned in the import sticker on the box whichever is earlier. The customer has to present the proof of payment/ invoice for claiming any warranty.
  • For the entire warranty period. Nu Republic or its authorized representative will at their discretion repair or replace the product.
  • The details of the service locations can be taken from our service helpline. It is the responsibility of the Customer to bring the product to Nu Republic Service Location at his/her own risk and expenses.

For any product repaired or replaced during the warranty period, the repaired or replaced product shall continue being within the period of the original product.
The warranty will not be applicable under the following circumstances:

  1. The product code/serial number, water indicator or warranty seal has been removed, erased. defaced altered or is illegible.
  2. Deterioration of the product due to normal wear and tear.
  3. Use other than in accordance with the user’s rough handling. ingression of/exposure to any kind of liquid (water. sweat. beverages. oils etc.) exposure to moisture. dampness or exposure to extreme environmental conditions.
  4. The warranty will also not cover any physical damage to the surface of the product including but not limited to scratches on the body parts.
  5. As defects caused by the fact that the battery has been short-circuited or by the fact that the seals of the casing or any evidence of tampering or the product is used for equipment other than for which it is certified.

Any claim under the warranty is subject to notification to Nu Republic. For the alleged defect within a reasonable time of its occurrence and in no event not later than the expiry of the warranty period.
Nu Republic / authorized partner will not be responsible for any kind of losses direct or indirect.
Nu Republic’s obligation under this warranty shall be limited to repair or providing replacement of parts only the maximum claim entertained by Nu Republic will be subject to the maximum retail price of the product or purchase price (as per invoice) whichever one is lower.
Note: Check out our website www.nurepublic.co for existing offers & extended warranty.
In an event of any unforeseen circumstances, there is the unavailability of certain spare parts, prevailing depreciation rules will be binding on the purchaser to accept as a commercial solution in lieu of repairs.
Helpline Number: +91-8826257630
Working Hours: Monday to Friday 10:00 AM- 5:30 PM (except national and public holidays)

Email: [email protected]

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