With this technology, these headphones can work at frequencies of 2.4GHz, with a signal / noise ratio of 90dB, ensuring a high quality audio playback up to 100 meters from the base in the workplace is particularly crowded with other wireless devices.
The headphones have a very aggressive and attractive design and the right side is the volume adjustment, based on the other hand, in addition to the button on / off switch, and indicator lights, there are 3 different ways to use the system: Analog , digital, and coaxial connectors located in the rear, the battery, then, has a duration ranging from 6 to 8 hours depending on the distance at which we work headphones.
The Sennheiser RS 220 have only one weak point, the price, which is particularly high: about 450 euros.
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