The easiest solution to help you sleep

A1 is a portable Bluetooth sleep sound converter that helps you sleep better wherever you are.
Simply put on the TWS earphones and experience our world’s first RBS sleep sound.

  • 블루투스2.png

    Bluetooth pairing

  • TWS2.png

    TWS earphones

  • RBS Technology

    RBS Technology

  • LED functional indication

    LED functional

  • ポータブル


  • Easy operation

    Easy operation

TWS earphones

Enjoy RBS sleep sound with A1’s TWS earphones.
Without the inconvenience of wires,
you may listen to RBS sleep sound anywhere
in your bedroom, on a plane, or at a picnic in the park.
Free yourself from loud noise and simply turn on RBS sound for sleep.

LED functional indication

Charging case
for longer use

With its size that fits in one hand,
A1’s charging case will help you enjoy
RBS sleep sound for a longer time.
Simply put the TWS earphones in the charging case when out of battery.
The charging case will keep the earphones safe and charged when not in use.

Easy Operation
&Neurogixs Connect

It is not complicated to operate A1.
The charging case and earphones indicate the operating status with LED.

Download Neurogixs Connect application,
you can operate all functions which couldn’t be used by its body alone,
such as timer, earphone pairing mode and more.


Completely handy design
(Design Partner Onkyo Corporation)

Sleek design with aluminum texture and anti-slip silicon finish.
We designed it for easy portability and operating features.




  • User’s TWS Output

    6mW + 6mW and above

  • Maximum distance range

    (This may vary depending on your environment.)

  • Bluetooth

    Device ⇔NRT-A1 body BT 4.1
    NRT-A1 body⇔User’s TWS BT 3.0
    User’s TWS L ⇔R BT 5.0

  • Charging terminal

    USB Type C (5V 500mA)

  • Charge time

    NRT-A1 3hr
    User’s TWS 1.5hr

  • Usage time

    NRT-A1 9hr
    User’s TWS 3hr (at 30% volume)

  • Applicable temperature range

    When stored 5℃ ~ 40℃
    When in use 0℃ ~ 35℃

  • Size

    NRT-A1 body 86(W) * 86(L) * 32(H) mm

  • Weight

    NRT-A1 body
    (without the TWS earphones)
    User’s TWS earphones
    About 4.5g/1eaWeight