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Thank you for trusting our company and buying the new Headset Office 2. We hope you enjoy it. Before you start using the device, we strongly recommend reading this manual to get used to it.

Care and maintenance

  • Do not expose your Headset Office 2 to impacts, dust, humidity or high temperatures.
  • Use neither corrosive nor abrasive cleaning products.
  • Do not disassemble the device. All repair works should be carried out exclusively by qualified staff of Energy Sistem Technology, S.A.

Technical specifications


  • Frequency response: 20 Hz ~ 20 kHz
  • Driver diameter: 30 mm
  • Type: dynamic
  • Neodymium magnet
  • On-ear design
  • Impedance: 32 ohms


  • Type: flexible and adjustable microphone
  • Sensitivity: -38 dB ± 3 dB
  • Frequency response: 100 Hz - 8 kHz


  • Length: 150 cm
  • Plug: 3.5 mm mini jack

Computer adapter

  • Cable length: 50 cm
  • Connector: 3.5 mm mini jack splitter for audio output and mic input.

Other features

  • Adjustable headband
  • High-density foam ear pads

Product content

  • Headset Office 2
  • 3.5 mm computer adapter
  • Pop filter

General overview

1. Right ear cup
2. Left ear cup
3. Microphone
4. Pop filter
5. 3.5 mm mini jack plug
6. Mini jack splitter for audio output and mic input

Wearing the headset

Adjusting the headset

To make video calls, you can wear the Microphone (3) on either the right or left side of the mouth, whichever is most comfortable for you. When making video calls you will hear mono sound, so you don?t have to worry about how you wear the headset.

On the other hand, you will listen to music in stereo. We therefore recommend you take into account the inner Right (1) and Left (2) markings to wear the headset properly.

Adjusting the microphone

Wear the Microphone (3) on either side of the month and adjust it properly. Take into account the symbol on the Microphone (3) indicating the side that should rest close to the mouth to ensure accurate voice capture.

Optionally, you can use the Pop filter (4) provided with the product to reduce popping sounds caused by the air coming out of the mouth when talking. We recommend using it if you leave a distance of less than 5 cm between lips and microphone.

Connecting the headset to a computer

There are two possibilities to connect the Headset Office 2 to your computer:

Using a 3.5 mm mini jack splitter with two plugs

If your computer features a separate mic input and output for headphones, you must use the splitter. To do so, plug the headset cable into the Mini jack splitter for audio output and mic input (6). Once you?ve done this, plug the splitter into the corresponding computer connections. The green connection is the headphones output and the red connection is the mic input.

Using a single 3.5 mm mini jack plug

If your computer features a single audio connection (which works both as an audio input and output), you can plug the headset directly into the computer without using the splitter. It is usually marked with a headphones symbol.

Important: Make sure you have selected the headset when adjusting the computer sound settings. In both cases, you must select the headset microphone as the computer audio input and the headset/headphones as the computer audio output.

Connecting the headset to a smartphone

You can also plug the Headset Office 2 into your smartphone using the 3.5 mm mini jack plug (5) to make video calls or listen to music.

If your smartphone doesn?t have a 3.5 mm mini jack connection, you can use the Type-C adapter, which is usually provided with smartphones that don?t feature this type of connection.



Energy Sistem Technology, S.A. is liable for any lack of conformity for 36 months from the date the goods are purchased. Batteries are excluded from the 36-month warranty, having a warranty period of 24 months.

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

The extended 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 on warranty products. Therefore, Energy Sistem's Technical Support will not assume any loss of the above-mentioned information. In this respect we recommend making a backup of your data and removing any personal data from the product 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. Specifications are subject to change without notice.

©2020 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 sole and exclusive responsibility that the product:

Description: office headset
Brand: Energy Sistem
Model: Headset Office 2
Manufacturer: Energy Sistem Technology, S.A.
Manufacturing country: China

referred to in this declaration is in compliance with the following European Union directives:

EN 55032:2015
EN 61000-3-2:2014
EN 61000-3-3:2013
EN 55035:2017

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 December 2020

Miguel Ángel Aragüez García
Innovation and Technology Director