HDR 175 - Additional Headphone for the RS 175 - Additional / replacement headphones for the RS 175 digital wireless headphone system. - Headphone with superior bass and surround modes for pure entertainment. - 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) - Supports analog and digital audio inputs and allows toggling between the inputs - Intelligently designed controls for maximum ease of use - Ergonomic design for enhanced wearing comfort - 2-year warranty NB: Does not include original product