The RS 120 has the same base as the RS 130.  The difference between the two is mainly the absence of a "3D sound" mode on the RS 120.  If you don’t think you need this function these headphones are a bargain at 20 Euros less than the RS 130.  In terms of design, there is a very aerodynamic and clean look and finishing touches are impeccable.   The transmitter which serves in recharging is aesthetically pleasing and won’t seem out of place in your living room.  We really liked the recharging system which is carried out by simply resting the headband on a metal part of the transmitter.

Like the SBC-HC8440/8565 and RS 130, Sennheiser’s RS 120 only has one 3.5mm mini jack.  If we had the choice, we would have preferred a double CINCH which is more adapted to the living room. There is high level comfort and we quickly forget these light headphones are there.  The earpieces and headband don’t cause any fatigue upon prolonged use.

In terms of audio quality, the RS 120 has all the good characteristics of the RS 130.  We noticed a slight whistling sound typical of wireless models, but there is also Sennheiser’s clear and airy sound production.  Details and dynamic range were only affected by light interference in an environment full of wireless and electronic devices.   Basses are slightly heavy but they are particularly well produced and show good nuances.  They offer an excellent foundation and are generally well balanced.  Mediums are very clear and show good separation.  Highs are also of good quality, saturate very little and remain precise.

The RS 130’s range is normal for radio technology and you can use these headphones throughout your home including on different floors.  Autonomy is about 20 hours which is largely enough.