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  • Thank you for your trust in our company and for buying the new Fabric Box 1+. We hope you enjoy it.

  • Before you start using your Fabric Box 1+ we strongly recommend to read this manual in order to get used to it.

Care and maintenance

  • Do not expose your Fabric Box 1+ to humidity or heat.

  • Do not use neither corrosive nor abrasive cleaning products.

  • Do not disassemble the device. All reparation works should be carried out exclusively by qualified staff of Energy Sistem Technology, S.A.

  • Do not place your Fabric Box 1+ on a table edge or bookshelf in order to prevent falls. The speaker may move over the surface when used at maximum volume due to the housing vibration.

  • Turn off your Fabric Box 1+ when you are not using it and do not let it completely discharged for a long time.


General features

  • Portable Bluetooth speaker with True Wireless Stereo (TWS) technology.
  • Playback modes: Bluetooth®, USB, microSD, 3.5 mm audio-in and FM Radio.
  • Adjust the volume, switch to the previous/ next track and enable hands-free mode from the speaker itself.

Technical specifications


  • Sound system: mono (1.0)
  • Power: 3 W
  • Speakers: 1 x 45 mm full range speaker
  • Passive radiators: 1 membrane on the front
  • Frequency response: 100 Hz ~ 18 KHz
  • THD < 1%

Bluetooth connectivity

  • Bluetooth 5.0 and class II. Up to 20 m distance range
  • True Wireless Stereo
  • Supported Bluetooh protocols: HSP / HFP / A2DP / AVRCP
  • Operating frequencies: 2.4 GHz (2.402 Hz - 2.480 Hz)
  • Maximum output signal: < 20 dBm
  • Hands-free function. Microphone sensitivity: -42 dB

Analogue input:

  • 3.5 mm mini jack audio input

USB/ MicroSD playback

  • USB/ MicroSD decoder: reads MP3/ WAV files from external units of up to 64 GB capacity with FAT/ FAT32 file system.

FM radio

  • Frequency range (FM): 87.5 ~ 108 MHz
  • Auto search function

Rechargeable battery

  • Capacity: 500 mAh
  • Type: Li-Po
  • Battery life at medium volume level: 5 hours*
  • Charging time: 1.5 hours
  • Device adapter: 5 V microUSB
  • Provided charging cable length: 50 cm

*This value is approximate. The battery life depends on the selected volume level and the selected type of music.

Product content

  • Fabric Box 1+
  • Charging cable

General overview

1. On/ Off
2. Change function
3. Volume -/ Back
4. Play/ Pause/ Call control/ TWS
5. Volume +/ Next
6. Function indicator

7. Audio-in
8. USB port
9. MicroSD slot
10. Charge indicator
11. Charging port


Main functions

Switching on and off the device

Press and hold On/ Off (1) for 2 seconds to switch on and off your device. You will also hear a confirmation sound when switching on the device. The Function indicator (6) glows while the device is on.

Press and hold On/ Off (1) for 2 seconds to switch off your device. You will hear a confirmation sound. At this point, the Function indicator (6) switches off.

Note: Press the hidden reset button located inside the Audio-in (7) to force the device to shut down.

Playback control

You can control playback functions from the speaker itself. Press repeatedly Volume +/ Next (5) or Volume -/ Back (3) to adjust volume and press and hold the very same buttons to switch to the next/previous track. You will hear a warning sound when reaching the maximum and minimum volume levels.

To start, pause or resume playback, press Play/ Pause/ Call control/ TWS (4).

Note: Bear in mind that you can only control playback from the connected music player while using the Audio-in (7).

Note: You can find all information about playback control while TWS mode is enabled in the TWS section.

Charging the battery

When the battery level is below 10%, you will hear a sound that will remind you to charge it. Plug the mini USB end of the provided USB cable into the Charging port (11) and the other USB end to any device with a 5 V USB charging port (PC, USB wall charger, car charger, etc.) to charge the battery. The Charge indicator (10) lights up red and switches off once the charging process has been completed. The charging time is approximately 3 hours.


  • Use a 5 V 2 A AC/DC power adapter.
  • Do not leave your Fabric Box 1+ completely discharged for a long time.

Bluetooth connection

Press Change function (2) until you find Bluetooth mode while your Fabric Box 1+ is on. Once you have done this, press and hold the same button for 2 seconds, until the Function indicator (6) starts flashing. At this point, your speaker and smartphone or tablet can be paired.

Once "Fabric Box 1+" appears on your device screen, press "connect". The devices will be connected immediately and without codes. You will hear a sound that confirms both devices have been paired correctly.

At this point, you will be able to start playback on your smartphone or tablet. The Bluetooth wireless connection's range is up to 20 meters.

Your Fabric Box 1+ will be automatically paired when you turn it on once again, provided that the Bluetooth connection on your smartphone or tablet is enabled.

In order to pair it with another Bluetooth device, press and hold Change function (2) until you hear a confirmation sound. By doing so, the current synchronization stops and the speaker starts a new search of Bluetooth® devices.

Note: Your Fabric Box 1+ turns off automatically after 5 minutes if Bluetooth® mode is enabled and not synchronized with any device.

Call control (Hands-free function)

You can control your calls from the speaker itself. To do so, pair the Fabric Box with your smartphone.

When receiving a call, the song you are listening to stops and the ringing tone sounds instead. Press Play/ Pause/ Call control/ TWS (4) to answer an incoming call and press it once again to hang up. The song will automatically resume afterwards.

Press and hold the Play/ Pause/ Call control/ TWS (4) when receiving an incoming call to reject it.

Note: If you receive an incoming call while TWS function is enabled, you will only hear the voice of the person who calls through the speaker connected to your smartphone (left channel).*

TWS (True Wireless Stereo)

This option makes it possible to wirelessly connect another Fabric Box to hear music with twice as much power and create a stereo sound system made up of two different channels: left and right.

To do so, switch on one of the Fabric Box and connect it to your smartphone via Bluetooth. Once you've done this, switch on the other Fabric Box, enable Bluetooth mode and press and hold Play/ Pause/ Call control/ TWS (4) for 2 seconds. You will hear a sound confirming that both devices have been successfully synchronized.

From that moment on, you can start Bluetooth playback to hear music through both speakers at the same time. The first connected speaker will be fed with the left channel (L) and the other one with the right channel (R).

If you want to disable this function, press and hold Play/ Pause/ Call control/ TWS (4) and both devices will be disconnected.

Switch to the next/ previous track and adjust volume from any speaker while TWS mode is enabled. If you turn up the volume of any of the speakers, you will be turning up the volume of both of them at the same time.

Note: *This is only possible if Bluetooth mode is enabled. In all other playback modes (USB, microSD, FM radio or line-in) a TWS connection is not possible.

Auxiliary audio input

Your Fabric Box also features an Audio-in (7) for 3.5 mm mini jack to connect your external devices using an audio cable.

Note: It is not possible to control music playback from the speaker while using this mode. You will have to use the music player to control playback functions.

FM radio

Before using the FM radio function, it is necessary to carry out a search of all stations available. The radio stations will be saved to the speaker's internal memory. It is therefore not necessary to carry out a new search each time you switch it on. You will only have to do this if you place the device in a new location or if you change the frequency of the saved radio station.

In order to carry out a search of all radio stations, press Change function (2) until the FM radio mode appears on screen. Press and hold Change function (2) for 2 seconds. The Function indicator (6) flashes repeatedly while carrying out a search. Once the process is completed, the LED flashes slowly. The process may take a few minutes. Once the search has been completed, press and hold Volume +/ Next (5) or Volume -/ Back (3)* to select the radio station that you want to hear from all saved radio stations.

If you place the speaker somewhere else, you will have to carry out a new search to obtain a proper radio wave reception.

Your Fabric Box will save the last selected radio station when you turn it off and on once again.

Important: Plug the provided charging cable into the device to work as an external antenna and improve radio reception. To do this, plug the cable into the Charging port (11) and do not connect the other cable end. Start a new radio station search as described above.

Important: The battery charging process may interfere with radio signals depending on the AC/DC power adapter used.

MicroSD/USB player

The device plays .mp3 and .wav files from microSD cards of up to 64 GB. Once the microSD card has been inserted, the Function indicator (6) starts blinking. This means that the device is reading the memory card and the contents will play automatically after a few seconds.

If you turn off the speaker or remove the storage unit, the internal memory will save the moment when you paused playback. If you connect the same removable storage unit once again, playback will resume and the last song that you listened will be then played.

Press and hold Volume +/ Next (5) or Volume -/ Back (3) to fast-forward and rewind a song.

Press and hold the Play/ Pause/ Call/ TWS (4) for 3 seconds to enable shuffle mode. You will hear a sound to confirm the selected mode has been enabled. Shuffle mode will be disabled automatically when switching off the speaker.

The root folders and files of your external cards or sticks will be read in chronological order and the songs included in your folders in alphabetical order.

Here you have a diagram of the reading order:


Battery life

The battery life of your Fabric Box 1+ depends on the selected volume level and the type of music you play. Please take a look at this comparative table to see more information about the approximate battery life of your device:

7 hours 5 hours 3 hours 2 hours


To force the device to shut down, press the hidden reset button located inside the Audio-in (7).

Note: Avoid using metallic objects when performing the reset.


Energy Sistem Technology, S.A. is liable for any lack of conformity that exists at the time the goods are purchased during a period of 36 months. Batteries are excluded from the 36 month warranty, having a warranty period of 12 months.

This warranty covers any defects in workmanship or materials and does not cover any product failure due to accidents, misuse or alteration made by an unauthorized person.

The special 36 month warranty is valid for the European Union. For other countries please refer to your specific legislation or your local distributor.

Warranty procedure

Please visit and select your product to view the FAQ (Frequently Asked Questions), user manual, quick guide, drivers and updates available as well as to submit a query to our Technical Support or manage the warranty.

You may also contact the distributor that sold the product by presenting the purchase receipt or invoice.

Trademarks. All company, brand and product names are trademarks or registered trademarks of their respective companies. Specifications are subject to change without notice.

© 2018 by Energy Sistem Technology, S.A. All rights reserved.

Declaration of conformity

Issuer's name: Energy Sistem Technology, S.A. - CIF: A53107488
Address: C/ Calpe, 1 - 03509 Finestrat, Alicante (Spain)
Tel: +34 902 388 388/ + 34 966 813 257

We declare under our own exclusive responsibility that the product:

Description: Portable wireless speaker
Brand: Energy Sistem
Model: Fabric Box 1+
Manufacturer: Energy Sistem Technology, S.A.
Manufacturing country: China

referred to in this declaration is in compliance with the essential norms and standards

EN 62368-1:2014+A11:2017
EN 62479:2010
ETSI EN 301 489-1 V2.2.3 (2019-11)
ETSI EN 301 489-17 V3.2.3
ETSI EN 300 328 V2.2.2 (2019-07)
ETSI EN 303 345 V1.1.7 (2017-03)

in conformity with the essential norms and standards of the Directive 2014/53/EU of the European Parliament and of the Council of 16th April 2014.

Finestrat, 1st December 2020

Miguel Ángel Aragüez García
Innovation and Technology Director