Sennheiser inaugurates the use of Auracast in home entertainment with the bundle featuring the HDR 275 headphones and BTA1 transmitter. What does this first integration of Auracast in TV headphones actually offer?
A first in TV audio with Auracast transmission
The RS 275 is the first home system to incorporate Auracast broadcast technology, based on the Bluetooth LC3 codec. This solution offers very low latency and a range of up to 50 meters, while guaranteeing precise synchronization of sound and image. The HDR 275 headphones can also be connected to other compatible devices, such as smartphones, tablets or computers, via Auracast or Bluetooth Classic, for flexible on-the-go listening.
- Read the guide: Everything you need to know about Bluetooth Auracast

This system enables the Sennheiser HDR 275 TV headphones to be used with other Auracast or Bluetooth Classic compatible devices, such as smartphones and tablets. Thanks to its multipoint function and intelligent switching between sources, the system integrates seamlessly with all current entertainment uses and configurations. In terms of sound, the HDR 275 benefits from Sennheiser’s acoustic expertise, promising a great experience.
Simple, customizable configuration
Designed to be used immediately, the RS 275 is already paired when you take it out of the box. The headphones’ large, textured buttons offer instinctive control of volume, power and even incoming calls, with sound levels up to 106 dB.

Users can then fine-tune the settings via the Sennheiser Smart Control Plus mobile app, available on Android and iOS. It provides access to presets, an equalizer, a transparency mode and the ability to locate the headphones.
The system also allows you to balance left/right channels or switch to mono mode. These adjustments make it easy to create a custom sound experience that’s adapted to individual preferences or needs.
Comfort designed for long listening sessions
The Sennheiser HDR 275 are ultra-light TV headphones with soft, breathable fabric-covered ear pads. They are designed to remain comfortable for hours on end, even during prolonged use. Autonomy reaches up to 50 hours on a single charge. The headphones recharge via the transmitter’s USB-C port or using a conventional home charger. The ear pads and battery are easily replaceable, helping to extend the product’s lifespan.
A versatile, compact transmitter
The Sennheiser BTA1 transmitter broadcasts the audio signal in Auracast to one or more compatible devices. It features several inputs: optical, 3.5mm jack and HDMI ARC. This means it can be connected to a variety of sources, such as a TV, hi-fi system or games console. Power is supplied via USB-A, while the headphones can be recharged using the transmitter’s USB-C port.
The buttons on the transmitter box can be used to select a source or sound mode, such as virtual surround rendering or dialogue enhancement. The unit can be mounted on the supplied headphone stand or placed close to the source.

When will it be available?
Available from February 17, 2026, and priced at €249.90, the Sennheiser RS 275 marks a milestone in the evolution of TV headphones, bringing the benefits of Auracast transmission within reach.















