Get up and dance with these Sennheiser RS 175 headphones. The RS 175 feature wireless connectivity at a distance of up to 328’. The dynamic bass and virtual surround sound listening modes deliver powerful audio performance supported by neodymium magnets. What’s Included HDR 175 Over-the-Ear Wireless Headphones TR 175 wireless transmitter 2 AAA LSD NiMH rechargeable batteries Power supply with 4 adapters (EU, UK, US and AU) 6.6’ 3.5mm audio cable, 4.9’ optical cable Owner’s manual Over-the-Ear Design Delivers a powerful listening experience. The ergonomic design provides comfort during extended listening sessions. Neodymium Magnets Provide sound reinforcement. Transmission Range of Up to 328’ (line of sight) Gives you the freedom to move and dance while listening to your favorite songs. Operates on a 2.40-2.48GHz wireless frequency. Dynamic Bass and Virtual Surround Sound Listening Modes Allow for situational sound customization. Analog and Digital Audio Inputs Along with toggling capability between inputs offer versatile connectivity. 17Hz - 22kHz Frequency Response For faithful sound reproduction.