Headphones Wireless Sennheiser Over Ear NC RS175

Sennheiser RS175 RF Wireless Noise Cancelling Headphones I use Sennheiser Headphones for years and these were a backup set Premium High End Headphones Excellent/Pristine Condition New Earpads No Issues Includes: Headphones, Charging Stand, Power Supply and Optic Cable Exactly as shown in photos and video Look and Sound Great Compact, ergonomic over-ear headphones. Connectivity Technology: Wireless.Frequency response 17 - 22,000 Hz.Specific uses for product : Communication.Transducer principle : Dynamic, Closed. Carrier frequency : 2.4 – 2.48 GHz. Bass boost & surround sound listening modes. Maximum sound pressure level : 114 dB at 1kHz, 3 percentage THD. THD, total harmonic distortion : <0.5 percentage at 1 kHz, 100 dB SPL. Range: Up to 100 m Digital wireless technology ensures that signal transmission remains clear & accurate Easy to set up & enjoy MAIN controls located on headphones