Sennheiser RS | Wireless headphone system | 175 | Full size | Black

Technical details
Producer – Sennheiser
Brand – Sennheiser
Compatibility – TV, Hi-Fi Systems, PC, Mac, Home Audio Components
Product Line – RS Series
Model – RS 175 (508676)
Manufacturer – Sonova Consumer Hearing GmbH

Audio System
Type – True wireless earphones Recommended Use – Home entertainment, TV, Hi-Fi audio
Max Operating Distance – 100 m 

Audio Output
Active Noise Canceling – No (Features high-quality closed circumaural design for excellent passive noise isolation)
Headphones Ear-Parts Type – Full size (Over-ear closed-back architecture)
Sound Output Mode – Stereo (Dynamic transducer system supporting Bass Boost and Surround Sound listening modes)
Frequency Response – 17 – 22000 Hz
Connectivity Technology – Wireless (Digital wireless transmission) / Wired (Optical and analog inputs on transmitter)
Impedance – 32 Ohm
Controls – On-headphones button layout (Volume up/down, Bass Boost toggle, Surround Sound toggle), Transmitter power switch
Wireless Technology – 2.40 – 2.48 GHz Digital Carrier (Supports up to 2 headphones simultaneously per transmitter)
Available Microphone – No

Miscellaneous
Colour – Black
Included Accessories – TR 175 transmitter/charging docking station, HDR 175 headphones, Optical cable (1.5m), Audio cable (3.5mm jack, 2.0m), Power supply with multi-country adapters, 2 x AAA rechargeable NiMH batteries
Protection – N/A (Standard indoor home entertainment lifestyle layout design)

Battery
Run Time (Up To) – 18 hour(s) (Powered by two AAA rechargeable NiMH cells with easy dock-charging system)

EU Power Device Regulations
Charger Included – Yes (TR 175 multi-purpose transmitter acts as the main docking cradle and charging station)

Dimensions
Width – 17.0 cm (Headphones) / 12.5 cm (Transmitter)
Depth – 9.5 cm (Headphones) / 11.2 cm (Transmitter)
Height – 20.0 cm (Headphones) / 23.4 cm (Transmitter)
Net Weight – 0.310 kg 
Gross weight – 1.48 kg

Warranty – 24 month(s)