SENNHEISER RS 275 TV Headphones

FEATURES:

Experience immersive TV sound with our pre-paired Bluetooth TV 
headphone and transmitter bundle. The RS 275 TV Headphones deliver 
virtual surround, crystal-clear, in-synch dialog, and up to 50-hour 
battery life – watch comfortably your way without disturbing others.
– Brilliant, perfectly synced sound: High-end Sennheiser drivers deliver brilliant 
sound and clear dialog that is always in sync with the actor’s lips and the action 
on the screen
– Speech clarity: Never miss another line of dialog with voices that are much clearer 
and easier to understand
– Virtual surround sound: Feel the depth and immersion of sound all around you, 
like in a movie theater
– Simple, guided setup: Just plug in the transmitter, turn on the headphones, and 
— voila — you’re connected – works with any TV with optical or analog connection
– Extended comfort: Plush earcups keep you comfortable during long, uninterrupted 
TV sessions
– Marathon-ready battery: Up to 50 hours of playtime lets you watch TV without 
breaks or worries
– Versatile Bluetooth connectivity: Classic Bluetooth lets you easily connect to your 
TV, phone, tablet, and more for flexible listening anytime

Technical data
Model name Order name Article no. EAN UPC
RS 275 TV Headphones RS 275 700440 4260752333320 810091273418
RS 275 TV Headphones
SPEC SHEET
Experience immersive TV sound with our pre-paired Bluetooth TV 
headphone and transmitter bundle. The RS 275 TV Headphones deliver 
virtual surround, crystal-clear, in-synch dialog, and up to 50-hour 
battery life – watch comfortably your way without disturbing others.
– Brilliant, perfectly synced sound: High-end Sennheiser drivers deliver brilliant 
sound and clear dialog that is always in sync with the actor’s lips and the action 
on the screen
– Speech clarity: Never miss another line of dialog with voices that are much clearer 
and easier to understand
– Virtual surround sound: Feel the depth and immersion of sound all around you, 
like in a movie theater
– Simple, guided setup: Just plug in the transmitter, turn on the headphones, and 
— voila — you’re connected – works with any TV with optical or analog connection
– Extended comfort: Plush earcups keep you comfortable during long, uninterrupted 
TV sessions
– Marathon-ready battery: Up to 50 hours of playtime lets you watch TV without 
breaks or worries
– Versatile Bluetooth connectivity: Classic Bluetooth lets you easily connect to your 
TV, phone, tablet, and more for flexible listening anytime
Product specification Headphones HDR 275
Wearing style Wireless headband
Ear coupling Over-ear
Connectivity Bluetooth Auracast™, Bluetooth 5.4, 
USB
Transmission frequency /
modulation
2,400 – 2,483.5 MHz / BLE: GFSK
Supported profiles A2DP, AVRCP, HFP, HSP, GATT, PBP, 
BAP
Supported codecs LC3, AptX, SBC, AAC, AptX Adaptive
Speaker principle Dynamic
Speaker type/size 37 mm diameter
Speaker frequency range 6 Hz to 22 kHz (-10 dB)
Speaker sensitivity 104 dB SPL (1 kHz / 0 dB FS)
Speaker THD <0.3% (1 kHz / 100 dB SPL)
Active Noise Cancellation No. Passive damping with Ambient 
Awareness mode.
Mic principle MEMS
Mic frequency range 50 Hz to 10 kHz (–3 dB)
Mic pick-up pattern 2 omni-directional microphones
Battery lifespan Up to 50 hrs playtime via Bluetooth 
(test condition: music playback with 
AAC codec, medium volume level)
Charging time Approx. 2 hrs for full charge 
Battery type Replaceable, rechargeable lithiumpolymer battery
Power supply 3.7 V⎓, 420 mAh, 1.554 Wh USB 
charging via USB-C socket at BTA1
Magnetic strength field 1.9 mT
Product weight Ca. 195 g (6.9 oz)
Product dimension 
folded flat
160 x 210 x 80 mm 
(6.3 x 8.27 x 3.15 in)
HAZMAT UN # UN3481
*Compatible with any TV with digital or analog audio output 

RS 275 TV Headphones
SPEC SHEET
Product specification BTA1 TV Transmitter 
Connectivity Bluetooth Auracast™
Transmission frequency /
modulation
BLE 1M: 2,402 MHz to 2,480 MHz 
BLE 2M: 2,404 MHz to 2,478 MHz 
(without 2,426 MHz) / BLE: GFSK
Transmission range 50 m
Supported profiles BAP, PBP 
Bluetooth codecs LC3
Inputs Digital input: Optical mini Toslink, HDMI ARC
Supported data streams: Stereo PCM
44.1 – 48 kHz / 16 – 24 bit, AC-3 (Dolby
Digital) max. bit rate: 640 kbps.
Analog input: 3.5 mm stereo jack socket
Power consumption Input: 5 Vdc , 1000 mA max. (USB power via 
TV or external USB source)
Output: 5 Vdc , 500 mA max.
(USB port for charging headphones)
Product weight approx. 100 g (3.5 oz) (without cable)
Product dimension
(W x H x D)
130 x 20 x 56 mm 
(5.12 × 0.79 × 2.20 in)
Latency ~50 ms
Product specification Headphone & Transmitter
Operating condition Temp: 0 to +40°C; Rel. humidity: 10 to 80%, 
non-condensing
Storage condition Temp: -20 to +60°C; Rel. humidity: 10 to 90%
App support Sennheiser Smart Control Plus app for iOS™ 
and Android™
Country of origin Made in China
Custom tariff code 85176200
Battery information Left Unit
Lithium-Ion cells 1 (single)
Qty (# of batteries for this 
type) inside product
1
Qty (# of batteries for this 
type) outside product
0
Vendor Synergy
MPN AHB651935HP
Capacity 420 mAh
Size/Format Height: 41.0 / Width: 24.0 /
Depth: 8.8
mm 
Voltage 3.7 V
Weight 12.2 g
Energy 1.55 Wh
Lithium content (primary) 0.21 g
CONTENTS OF DELIVERY
– HDR 275 TV Headphones with 
User Replaceable Battery
– TV Transmitter BTA1
– TV Audio Digital 
(Toslink to Mini Toslink Optical Cable)
– TV Audio Analog 
(Audio Cable 3.5 mm)
– USB A-C Cable
– USB C-C Cable
– Headphone Stand
– User Information
RS 275 TV Headphone