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Thank you for your trust in our company and for buying the new Earphones BT Running 2. We hope you enjoy them. We recommend you to read this manual to familiarize yourself with your earphones before you start using them.

Care and maintenance

  • Do not expose your Earphones BT Running 2 to impacts, dust, humidity or high temperatures.
  • Do not use neither corrosive nor abrasive cleaning products.
  • Do not dismantle the device. All repair works should be carried out exclusively by qualified staff of Energy Sistem Technology, S.A.
  • Please make sure that your Earphones BT Running 2 are off when you are not using them. Do not store them with an empty battery for long periods of time.

Technical specifications


  • Bluetooth: 4.2
  • Range: 10 m
  • Frequency band: 2.4 GHz
  • Maximum output signal: <20 dBm
  • Supported Bluetooth protocols: HFP / A2DP / AVRCP


  • Neodymium magnet
  • Frequency response: 20 - 20,000 Hz
  • Driver diameter: 10 mm
  • SPL: 98 ± 3 dB
  • Maximum power: 3 mW
  • Design: in-ear
  • Type: dynamic
  • Impedance: 32 ohms


  • Sensitivity: -42 dB ± 3 dB (at 1 KHz)


  • Capacity: 100 mAh/ 3.7 V
  • Type: Li-Po
  • Battery life:
  • Battery life at medium volume level: 7 hours*
  • Battery life at medium volume level (with light mode enabled): 3.5 hours*
  • Charging time: 2 hours
  • Charging port: microUSB Type-B

  • This value is approximate. Battery life depends on the selected volume level and type of music.


  • MicroUSB charging cable

Product content

  • Earphones BT Running 2 Neon Blue
  • MicroUSB charging cable
  • Spare earbuds

General overview

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  1. On/ Off button
  2. Status indicator
  3. Volume +/ Next track
  4. Volume -/ Previous track
  5. Play/ Pause
  6. Charging port
  7. Neon light

Turning on/off and pairing the device

Switch the ON/ OFF BUTTON (1) to the ON position to turn on your Earphones BT Running 2. You will hear a confirmation sound. At this point, the STATUS INDICATOR (2) lights up blue. Once your Earphones BT Running 2 are on, the STATUS INDICATOR (2) flashes blue and red. This means that the earphones and your Bluetooth source device are trying to connect. Switch the ON/ OFF BUTTON (1) to the OFF position to turn off your Earphones BT Running 2. You will hear a sound when switching off the earphones.

Charging the battery

When the battery level is below 10%, you will hear a sound to remind you to charge it.

The STATUS INDICATOR (2) glows red while charging the device and turns blue once the charging process has been completed. Plug the microUSB end of the USB cable provided to your earphones' CHARGING PORT (6) and the other USB end to any device with a USB charging port that provides energy (PC, USB wall charger, car charger, etc) to charge the battery. It takes approximately 2 hours to charge it.

Battery life

Your earphones' battery life depends on the selected volume level and the type of music. Please take a look at this comparative table to find out more about the approximate battery life of your device:

Volume Low (25%) Medium (50%) High (75%) Maximum (100%)
8 hours 7 hours 6.5 hours 6 hours

*The battery life depends on the selected volume level and the type of music you play.

Auto power off

In order to optimize battery life, your Earphones BT Running 2 turn off automatically after 5 minutes in search mode, if not synchronized with any other device. If they're not playing music, they turn off after 30 minutes.



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.


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

© 2019 by Energy Sistem Technology, S.A. All rights reserved.

Declaration of conformity

Issuer's name: Energy Sistem Technology, S.A.
Address: C/ Calpe, 1 - 03509 Finestrat, Alicante (Spain)
Tel: +34 966 830 324
CIF: A53107488

We declare under our own exclusive responsibility that the product:

  • Description: Wireless earphones
  • Brand: Energy Sistem
  • Model: Earphones BT Running 2
  • Manufacturer: Energy Sistem Technology, S.A.
  • Manufacturing country: China

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

EN 301 489-1 V2.1.1(2017-02)
EN 301 489-17 V3.1.1(2017-02)
EN 300 328 V2.1.1 (2016-11)
EN 62368-1: 2014 + A11:2017
EN 50663: 2017

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

Finestrat, 1st April 2019


Daniel Havillio
Product Management Director