Sennheiser RS ​​120 wireless headphones Review


In we have analyzed the Sennheiser RS 120 wireless headset system with radio frequency transmission and adaptable to any team, both as a multimedia computer.

Manufacturer: Sennheiser
Model: RS 120
Distributor: Magnetron S.A.
Price: 80 €

Manufacturer Information: For 60 years the name Sennheiser has been synonymous with products and solutions designed for every aspect of recording, transmission and reproduction of sound. In 1945 Dr. Fritz Sennheiser together with seven engineers and technicians, to the adventure of creating a new company was launched.

These were the beginnings of Sennheiser electronics, today is a global group of companies with over 1,600 employees has become a world leader in audio solutions. Helmets, headphones, wireless systems, microphones, audio systems for aviation, audio guides, etc.

Product Overview

This product can be a great solution for home listening to music move around freely, without cables, while others do not bother. There are many applications that can give you, to watch television, listen to music, use with our PC can even connect any mp3 player.

pin female / female receptacle 3.5 mm / 6.3 mm stereo (863-865 MHz), cinch (926-928 MHz)
Max. Sound pressure level of 106 dB.
Power: 9V DC (transmitter); AAA batteries (receiver).
Weight (Transmitter) 200 g (Receiver) 230 g (inc batteries.)
Range: up to 100m
Stereo FM modulation.
Signal to Noise Ratio> 65 dBA.
RF frequency range: 863 … 926 … 865MHz or 928MHz.
Dimensions (Transmitter): 85 x 225 x 133mm.

First impressions

At first glance the Sennheiser RS120 is less cumbersome than other products of the same style, and when they hold can see that are considerably lighter. When we put them we can see that they are quite comfortable and fit well.

They are made of sturdy black plastic headphones are protected with black felt and also has three pads that best suits our head.

The base is light gray, and acceptable dimensions, we note that to sustain helmets have a piece of metal with an original way. The contrast of black and gray helmets base is pretty good.

They are included in the box-shaped two batteries AAA batteries and the transformer to connect to the stream. We also find the manual and use recommendations.


The initial assembly is very simple just have to put the batteries into place, turning a little protection of the right earpiece; then connect the power cord and plug our favorite audio source.

Helmets perfectly fit our head due to the height adjustment and pads on top; These pads also help securing helmets to the base. Thanks to the game that has torsion in the part that goes ears the headset is perfectly adjusted to avoid leaks of external sound.

The controls on the handset are simple and functional, in the left atrial have the switch on / off and on the right we have two wheels to control the volume and adjust the tuning of the frequency emitted by the base.

The base has a very unusual design, a circular metal tubes coming out of the back to place the handset while it contacts and begins to automatically load, this part of metal is magnetized so that the headphones remain well making it difficult to set slip base. Two leds one red and one green indicate if the handset is in charge and if on respectively. On the back, the base has a hole that gives us the possibility to hang it on the wall. The base also has a button to switch between three broadcast frequencies for interference if we use or have different stations bases in the same area.

The range is 100metres, according to specifications, maybe this a bit exaggerated, since unhindered through the middle from the 70metros can begin to hear some imperfections reception. Obstacles drastically reduces the scope and increases the chance of having a bad reception, but even with many obstacles and walls can hear perfectly through the audio to more than 20metres, making it ideal for pasearnos around the house listening to music.

The sound quality is quite good, both the treble levels as severe, very well leveled, creating a very accurate audio reproduction.

We have the possibility of separating the protective of the handset with a simple twist so you can clean easily felt; Also, if eventually deteriorates and breaks we can replace it. There is no evidence that Sennheiser provide spare parts for this product but we can do a hack ourselves.


Good sound quality
long autonomy
Rechargeable at the base


Creates noise if you have an audio source
Only connection “jack 3.5”
The handset gets dirty easily


Sound: 4
Design: 4
Scope: 4.5
Price: 3


The Sennheiser RS120 is a wireless headset that offers good sound quality and we can adapt to almost any source. It is simple to use, save and load. To all this we add a very good battery life and although it has many benefits is fair and necessary to not disappoint and function remarkably like what it is, a wireless headset.