Noise reduction technology reduces interference from other distracting noise around you and neodymium magnets gives you a high fidelity sound reproduction.;Padded Earcups, Closed Dynamic, Comfortable fit with adjustable headband and complete coverage of the ear with 40mm diameter drive units for deep bass;Volume control on ear piece, auto power On/Off, Manual tuning via switch on both base and headphones;Wireless Analog 900MHz radio frequency transmission with up to 150 ft transmission range, even through walls;Supplied rechargeable nickel-metal hydride battery automatically charge by placing the headphones on the transmitter base station