Sennheiser RS 175 Taking home entertainment to the next level, Sennheiser’s RS 175 offers an impressive range of features in a compact, ergonomic package, so that you can enjoy music and television to the fullest. The Bass Boost and Surround Sound listening modes will allow you to experience your home entertainment system like never before – the former increases the audio bass response while the two virtual surround modes offer a more spatial and livelier stereo sound. What’s more, the innovative digital wireless technology ensures that signal transmission remains clear and accurate as you move from room to room. Additionally, the user-friendly design makes it easy to set up and enjoy the RS 175. The main controls are located on the headphones, so nothing will distract you from an exciting audio experience, and the comfortable fit is ideal for extended periods of use. Sennheiser’s RS 175: Home entertainment just got more entertaining! Features: Closed, circumaural headphones with excellent digital wireless audio transmission Exceptional digital audio clarity and transmission range of up to 328ft/100m (line of sight) Enables switching between dynamic bass and virtual surround sound listening modes for situational sound customization Supports analog and digital audio inputs and allows toggling between the inputs Intelligently designed controls for maximum ease of use Multi-purpose transmitter – also functions as ‘easy-charge’ cradle and docking station Multi-receiver transmission – transmitter supports up to two pairs of headphones simultaneously Ergonomic design for enhanced wearing comfort 2-year warranty Specifications: Frequency response 17 - 22,000 Hz Max. sound pressure level 114 dB at 1kHz, 3% THD THD, total harmonic distortion <0.5 % at 1 kHz, 100 dB SPL Transducer principle dynamic, closed Weight 310 g (incl. batteries) Operating time up to 18 hrs Audio input 1 x 3.5 mm stereo, 1 x optical digital Power consumption ≤ 0.3 W (standby) Range Up to 100 m Signal-to-noise ratio Analog input: typ. 85 dBA at 1 Vrms Signal-to-noise ratio Digital input: > 90 dBA Modulation 8-FSK Digital Carrier frequencies 2.4 – 2.48 GHz