The Echelon ANR is packed with performance and comfort features. At 18 oz./510 g it has all of the Echelon 100s best comfort features, as well as 21dB of passive noise reduction and an additional 14dB of active noise reduction for hearing protection and a quieter, safer cockpit. The Echelon ANR also includes dual volume controls and battery power (50 hours typical flying time). Panel power is available as an option. The headset is designed to collapse for compact portability and easy storage.