Sennheiser RS 275 Wireless Over-Ear TV Headphones with BTA1 Transmitter

The Sennheiser RS 275 Wireless TV Headphones are designed to provide an immersive, personalized television listening experience with high-fidelity audio, clear dialogue, and reliable wireless connectivity. This over-ear Bluetooth headphone and transmitter bundle is equipped with high-performance 37 mm dynamic drivers, Virtual Surround Sound technology, and advanced Speech Clarity features to deliver detailed audio for movies, television shows, sports, and entertainment. Sound and picture are kept synchronized through low-latency wireless transmission, while a private listening experience is provided without disturbing others.

The Sennheiser RS 275 headphones are equipped with Bluetooth 5.4 and Bluetooth Auracast technology, allowing audio to be streamed wirelessly from the included BTA1 TV transmitter. A wireless range of up to 50 meters is supported, providing freedom of movement throughout the home. Up to 50 hours of Bluetooth playback can be enjoyed on a single charge, while the replaceable rechargeable lithium-polymer battery can be fully charged in approximately 2 hours. A lightweight over-ear design with breathable fabric ear cushions is provided for comfortable listening during extended viewing sessions.

Personalized sound adjustment is supported through four hearing profiles, independent left and right ear balance controls, and a Normalize Volume function that helps reduce sudden volume changes between different types of content. Speech Clarity technology is used to selectively enhance voices, making conversations and dialogue easier to understand. With Auracast broadcasting, audio can also be shared with multiple compatible headphones while independent volume settings are maintained for each listener.

Easy installation is provided through the pre-paired headphones and transmitter, which can be connected to compatible televisions using digital optical or analog audio connections. The headphones can also be paired with smartphones, tablets, and other Bluetooth-enabled devices for flexible everyday listening. A dedicated headphone stand, audio cables, and USB charging cables are included for a complete home entertainment setup.

Key Features

High-Fidelity Sound with Virtual Surround Sound

Immersive audio is delivered through 37 mm dynamic drivers and Virtual Surround Sound technology. Detailed sound reproduction is provided for movies, television programs, sports, and other entertainment content, creating a more cinematic listening experience.

Advanced Speech Clarity Technology

Human voices are selectively amplified to improve dialogue intelligibility. Conversations, quiet speech, and spoken content are made easier to understand without requiring constant volume adjustments.

Bluetooth 5.4 Wireless Connectivity

Reliable wireless audio transmission is supported through Bluetooth 5.4 technology. The headphones can be connected to the included BTA1 transmitter or paired with compatible smartphones, tablets, and other Bluetooth devices.

Bluetooth Auracast Multi-Listener Support

Audio broadcasting to multiple Auracast-compatible headphones is supported through the included transmitter. Independent volume and listening preferences can be maintained for each listener, while simultaneous television speaker playback may also be available depending on the TV.

Up to 50 Hours of Battery Life

Up to 50 hours of Bluetooth playback is provided under specified test conditions. The rechargeable lithium-polymer battery is replaceable, and a full charge can be completed in approximately 2 hours.

Up to 50-Meter Wireless Range

A wireless transmission range of up to 50 meters is supported, allowing audio to be enjoyed while moving around the home without remaining close to the television.

Personalized Hearing Profiles

Four hearing profiles are provided to accommodate different listening preferences. Sound can be customized, and the volume balance between the left and right ears can be adjusted independently.

Normalize Volume Function

Sudden changes in audio volume are reduced through the Normalize Volume feature. More consistent listening levels can be maintained when switching between dialogue, action scenes, and advertisements.

Low-Latency Audio Synchronization

Sound is kept synchronized with on-screen action through low-latency wireless transmission, helping prevent noticeable delays between television audio and video.

Comfortable Over-Ear Design

A lightweight headband design with plush, breathable fabric ear cushions is used to provide comfort during extended listening sessions. The headphones weigh approximately 195 g.

Passive Noise Damping with Ambient Awareness

Passive sound isolation is provided through the over-ear design, while Ambient Awareness mode allows surrounding sounds to be heard when needed. Active Noise Cancellation is not included.

Simple Pre-Paired Setup

The headphones and BTA1 transmitter are supplied pre-paired for convenient installation. Digital optical and analog audio connections are supported for compatibility with a wide range of televisions.

Replaceable Battery and Ear Cushions

A user-replaceable rechargeable battery is included, and the ear cushions can also be replaced. The battery is designed for an average lifespan of up to 12 years under the manufacturer's specified usage conditions.

Versatile Audio Codec Support

LC3, aptX, SBC, AAC, and aptX Adaptive codecs are supported to provide flexible wireless audio compatibility across different devices.

Specifications

General Specifications

• Brand: Sennheiser

• Model: RS 275

• Product Type: Wireless TV Headphones with Transmitter

• Headphone Model: HDR 275

• Included Transmitter: BTA1 TV Transmitter

• Wearing Style: Wireless Headband

• Ear Coupling: Over-Ear

• Speaker Principle: Dynamic

• Speaker Driver Size: 37 mm Diameter

Connectivity and Wireless Specifications

• Connectivity: Bluetooth Auracast, Bluetooth 5.4, USB

• Transmission Frequency: 2,400–2,483.5 MHz

• Modulation: BLE: GFSK

• Supported Bluetooth Profiles: A2DP, AVRCP, HFP, HSP, GATT, PBP, BAP

• Supported Audio Codecs: LC3, aptX, SBC, AAC, aptX Adaptive

• Wireless Range: Up to 50 m

• Auracast Broadcasting: Supported

• Multiple Headphone Connections: Supported with Auracast-Compatible Headphones

• TV Compatibility: Televisions with Digital or Analog Audio Output

• Digital Audio Connection: Optical

• Analog Audio Connection: 3.5 mm

Audio Specifications

• Speaker Frequency Response: 6 Hz–22 kHz (-10 dB)

• Speaker Sensitivity: 104 dB SPL (1 kHz / 0 dB FS)

• Total Harmonic Distortion (THD): Less Than 0.3% (1 kHz / 100 dB SPL)

• Virtual Surround Sound: Supported

• Speech Clarity: Supported

• Hearing Profiles: 4

• Normalize Volume: Supported

• Independent Left/Right Ear Balance: Supported

• Active Noise Cancellation (ANC): No

• Noise Management: Passive Damping with Ambient Awareness Mode

Microphone Specifications

• Microphone Principle: MEMS

• Microphone Frequency Range: 50 Hz–10 kHz (-3 dB)

• Microphone Pickup Pattern: 2 Omnidirectional Microphones

Battery and Charging Specifications

• Battery Type: Replaceable Rechargeable Lithium-Polymer Battery

• Battery Voltage: 3.7 V DC

• Battery Capacity: 420 mAh

• Battery Energy: 1.554 Wh

• Battery Life: Up to 50 Hours via Bluetooth

• Battery Life Test Conditions: Music Playback with AAC Codec at Medium Volume

• Charging Time: Approximately 2 Hours for a Full Charge

• Charging Connection: USB-C Socket at BTA1

• Estimated Battery Service Life: Up to 12 Years Under Specified Usage Conditions

• Battery Service Life Test Conditions: Connected to BTA1, 70% Volume, 5 Hours of Daily Use, Without Heat Exposure or Deep Discharge

Physical Specifications

• Product Weight: Approximately 195 g (6.9 oz)

• Dimensions When Folded Flat: 160 × 210 × 80 mm (6.3 × 8.27 × 3.15 in)

• Magnetic Strength Field: 1.9 mT

• HAZMAT UN Number: UN3481

What's Included in the Box

• Sennheiser HDR 275 Wireless Headphones with User-Replaceable Battery

• BTA1 TV Transmitter

• Digital TV Audio Cable (Toslink to Mini Toslink Optical Cable)

• Analog TV Audio Cable (3.5 mm)

• USB-A to USB-C Cable

• USB-C to USB-C Cable

• Headphone Stand

• User Information

Conclusion

The Sennheiser RS 275 Wireless Over-Ear TV Headphones with BTA1 Transmitter are designed for comfortable, high-quality, and personalized home entertainment listening. With Virtual Surround Sound, enhanced Speech Clarity, Bluetooth 5.4 connectivity, Auracast multi-listener broadcasting, and up to 50 hours of battery life, immersive television audio can be enjoyed with greater flexibility and control. The lightweight design, replaceable battery, customizable hearing profiles, and simple pre-paired setup make these wireless TV headphones a practical solution for private television listening, movies, sports, and everyday entertainment.