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  • Thank you for your trust in our company and for buying the new Urban Box 7 BassTube. We hope you enjoy it.

  • Before you start using your Urban Box 7 BassTube we strongly recommend to read this manual in order to get used to it.

Care and maintenance

  • This product is splashproof, not waterproof. Close the cover flap that protects the ports properly when the device is exposed to moisture.

  • Do not expose your Enegy Urban Box 7 BassTube to high temperatures.

  • 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 Urban Box 7 BassTube on a table edge or bookshelf in order to prevent falls.

  • Turn off your Urban Box 7 BassTube when you are not using it. Do not let it completely discharged for a long time.


Portable Bluetooth speaker with True Wireless Stereo technology and 360º sound. Water-resistant and shockproof. Play your music using the built-in microSD player and audio-in (AUX).

Technical specifications


  • Stereo system: 2.0
  • Power: 30 W
  • Speakers: 2 dynamic full range stereo speakers with a diameter of 48 mm
  • Passive radiator: two membranes
  • Frequency response: 60 Hz ~ 18 KHz
  • THD < 1%
  • S/N ratio: > 80 dB

Bluetooth connectivity

  • Bluetooth v4.2, class II Up to 10 m distance range
  • Supported Bluetooh protocols: HSP / HFP / A2DP / AVRCP
  • Operating frequencies: 2.4 GHz (2.402 - 2.480 GHz)
  • Maximum output power: < 20 dBm
  • Hands-free function. Microphone sensitivity: -38 dB
  • True Wireless Stereo

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 128 GB capacity with FAT/ FAT32 file system.

Rechargeable battery

  • Capacity: 2000 mAh
  • Type: Li-Po
  • Battery life at medium volume level: up to 6 hours*
  • Charging port: microUSB
  • Charging time: 3 hours

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

Product content

  • Urban Box 7 BassTube
  • Audio cable
  • Charging cable
  • Pouch

General overview

1. Function and charge indicator
2. On/ Off/ Change function/ TWS
3. Volume -/ Back
4. Play/ Pause/ Call control
5. Volume +/ Next
6. Charging port
7. MicroSD slot
8. Audio-in (AUX)


Main functions

Switching on and off the device

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

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


Imagen1 Flashing indicator: Bluetooth search.
Imagen1 Fixed indicator: Paired via Bluetooth.
Imagen1 Flasing indicator: TWS search/ reading microSD card.
Imagen1 Fixed indicator: Auxiliary audio input.
Imagen1 Flashing indicator: Low battery level.
Imagen1 Fixed indicator: Charging battery.

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 (AUX) (8).

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. At this point, the Function indicator (1) starts flashing red. Plug the mini USB end of the provided USB cable into the Charging port (6) 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 (1) glows 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 Urban Box 7 BassTube completely discharged for a long time.

Bluetooth connection

Switch on your Urban Box 7 BassTube. The Bluetooth search starts automatically. At this point, the Function and charge indicator (1) starts blinking blue.

Once "Urban Box 7" 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 10 meters.

Your Urban Box 7 BassTube will be automatically paired when you switch it on once again, provided that the Bluetooth connection on your smartphone or tablet is enabled.

Press and hold Volume -/ Back (3) and Volume +/ Next (5) at the same time if you want to disconnect the source device and start a new device search. / Retroceso (3) y Volumen + / Avance (5)*.

Note: Your Urban Box 7 BassTube 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 Urban Box 7 BassTube 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 Play/ Pause/ Call control/ TWS (4) when receiving an incoming call to reject it.

Note: If you receive an incoming call while TWS mode 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 Urban Box 7 BassTube to get twice as much power and create a stereo sound system made up of two different channels: left and right.

To do this, switch on both Urban Box 7 BassTube and press the On/ Off/ Change function/ TWS button (2) on any of them twice. Both speakers synchronize automatically after a few seconds. You will hear a confirmation sound.

Access your smartphone settings and select "Urban Box 7" to connect your smartphone to the master speaker via Bluetooth.

From that moment on, you can start Bluetooth playback to hear music through both speakers at the same time.

Press and hold Volume -/ Back (3) and Volume +/ Next (5) at the same time if you want to disable this function. / Retroceso (3) y Volumen + / Avance (5)* en uno de los dos altavoces y ambas unidades se desincronizarán.

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 (microSD or line-in) a TWS connection is not possible.

Auxiliary audio input

This device also features an Audio-in (AUX) (8) for mini jack 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. You will have to use the music player to control playback functions.

MicroSD player

The device plays .mp3 and .wav files from microSD cards of up to 128 GB. Once the microSD card has been inserted, the Function indicator (1) starts blinking green. 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 Play/ Pause (4) for a few seconds to switch from one folder to another.

The root folders and files of your removable microSD cards 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 Urban Box 7 BassTube depends on the selected volume level and the type of music. Please take a look at this comparative table to see more information about the approximate battery life of your device:

10 hours 6 hours 5 hours 4 hours


To force the device to shut down, press the hidden reset button located inside the Audio-in (AUX) (8).

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: Urban Box 7 BassTube
Manufacturer: Energy Sistem Technology, S.A.
Manufacturing country: China

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

EN 62479:2010
EN 62368-1:2014+A11:2017
EN 301 489-1 V2.2.0
EN 301 489-17 V3.2.0
EN 300 328 V2.1.1

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 May 2021.

Miguel Ángel Aragüez García
Innovation and Technology Director