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  • Thank you for your trust in our company and for buying your new Music Box 1+, a portable speaker with Bluetooth 4.1 that plays your music via Bluetooth, FM Radio and audio-in as well as from microSD cards up to 128 GB. Choose what you prefer any time. We hope you enjoy it.

  • Before you start using your speaker, we strongly recommend to read this manual in order to get used to it.

Care and maintenance

  • Do not expose your Music 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.

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

  • Avoid pressing the speaker rear membrane in order not to damage the device.

Technical specifications

  • 1.0 sound system
  • Power: 5 W
  • Speakers: 1 dynamic full range stereo speaker with a 40 mm diameter
  • Passive radiator: 1 membrane
  • Frequency response: 80 - 18000 Hz
  • Bluetooth 4.1, Class II. It supports HSP / HFP / A2DP / AVRCP protocols
  • Microphone sensitivity: -42 dB
  • 87.5 to 108 MHz FM radio with presets
  • MicroSD decoder: reads MP3/ WAV files from external units of up to 128 GB capacity with FAT/ FAT32 file system.
  • S/N ratio > 90 dB

Rechargeable battery specifications

  • Capacity: 800 mAh
  • Type: lithium polymer
  • MicroUSB charging system
  • Charging time: 1.5 hours
  • Battery life if volume is at 50%: 6 hours*
  • Battery life if volume is at 70%: 4 hours*
  • Battery life if volume is at 100%: 3 hours*

    *The battery life depends on the selected volume level and the type of music you play. Bass tones such as drums consume a large amount of battery.

Product content

  • Music Box 1+
  • Audio cable
  • USB charging cable

Buttons and ports

1. On/ Off
2. Change function/ Bluetooth search/ Change microSD folder/ Radio FM tuning
3. Volume -/ Back
4. Play/ Pause/ Call control
5. Volume +/ Next
6. Function indicator
7. Microphone
8. Charge indicator
9. MicroUSB charging port
10. MicroSD slot
11. 3.5 mm mini jack input

Main functions

Switching on and off the device

Press and hold the On/ Off button (1) for 2 seconds to turn on the device and you will see that the Function indicator (6) turns on. You will also hear a confirmation sound when switching on the device.

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

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 MicroUSB charging port (9) of your Music Box 1+ and the other USB end to any device with an USB charging port to provide energy (PC, USB wall charger, car charger, etc.) to charge the battery. The Charge indicator (8) will light up red and will switch off once the charging process has been completed. The charging time is approximately 1.5 hours.


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

Playback modes

Press the Change function button (2) to select one of the following playback modes:

Imagen1 Bluetooth (blue indicator)

Imagen1 FM radio (green indicator)

Imagen1 MicroSD reader (white blinking indicator)

Imagen1 Audio-In (fixed white indicator)

Bluetooth connection

Press and hold the Change function button (2) for 2 seconds to start the Bluetooth search. At this point, the Function indicator (6) starts blinking blue. Access the list of available devices on your smartphone or tablet and once there, select your "Music Box 1+". The devices will be connected without codes. Once the connection has been established, you will hear a confirmation sound.

At this point, you will be able to start playback on your smartphone or tablet. The range of the Bluetooth wireless connection is up to 10 meters.

You will be able to control playback from the speaker by pressing Volume +/ Next (5), Volume -/ Back (3) and Play/ Pause (4).

Your Music Box 1+ will save the last connected device when turning off the speaker and will automatically pair with it when you turn on the speaker once again.

Press and hold the Change function button (2) for 2 seconds to start a new Bluetooth search and pair your speaker with a different smartphone or tablet.

Call control

Once the speaker and your smartphone are paired, you will be able to answer incoming calls from the speaker itself.

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

Keep a distance of 30-50 cm from the speaker for a proper voice reception. The Microphone (7) is in the top part of the speaker.

FM radio

Once the FM radio mode is enabled, press and hold the Change function button (2) for 2 seconds to start searching for FM radio stations. At this point, the Function indicator (6) starts blinking green. 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 Music Box 1+ will save the last selected radio station when you turn it off and on once again.

Important: Plug the charging cable provided with the product into the device to work as an external antenna and improve radio reception. In order to do this, plug the cable into the micro USB (9)* and do not connect the other cable end. Start a new FM radio station search as described above.

MicroSD reader

The device plays .mp3 and .wav files from your microSD cards (up to 128 GB). Once the microSD card has been inserted, the Function indicator (6) will start 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, the internal memory will save the moment when you paused playback. Playback will resume and the last song that you listened will be played when you switch on the speaker once again.

Press and hold Next (5) or Back (3) to move to the next or previous track.

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

Here you have a diagram of the reading order:


Press and hold the Change function button (2) for 2 seconds to move to the next memory card folder during playback.

Important: We strongly recommend to remove the microSD card once the device is off.


Your Music Box 1+ also features a 3.5 mm mini jack input (11) to connect your external devices using the provided audio cable.

NOTE: It is not possible to control music playback from the speaker while using this mode. In order to control playback functions you will have to use the music player that you have connected.


To force the device to shut down, press the hidden reset button located inside the 3.5 mm mini jack input (11).

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 24 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.

Important: This warranty does not cover any damage or loss of data stored in warranty products. Therefore, Energy Sistem?s Technical Support will not assume any loss of the above mentioned information. In this respect it is recommended that you make a backup of your data and remove any personal data from the product's internal memory before you send it or send it only with the original data.
Specifications are subject to change without notice.

Trademarks All company, brand and product names are trademarks or registered trademarks of their respective companies.

© 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: + 34 966 830 324

We declare under our own exclusive responsibility that the product

Description: Portable wireless speaker
Brand: Energy Sistem
Model: Music 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 50663:2017
EN 62479:2010
EN 62368-1:2020+A11:2020
EN 301 489-17 V3.2.2 (2019-12)
EN 301 489-1 V2.2.3 (2019-11)
EN 300 328 V2.2.2 (2019-07)
EN 303 345-1 V1.1.1 (2019-06)
EN 303 345-3 V1.1.0 (2019-11)

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