Link: www.theaudiotavern.com Audio-Technica ATH-ANC7 B (Audio Technica ATHANC7B) Audio Technica ATH-ANC7B QuietPoint Active Noise Canceling Headphones * Frequency response: 10Hz-25kHz * ATH-ANC7 QuietPoint™ noise canceling headphones feature ANC circuitry effectively reduces environmental noise by up to 85% * Lightweight, compact design is ideal for travel * Use for iPod®/iPhone™, MP3, CD/DVD and in-flight entertainment systems: remove detachable cable for noise canceling function without audio * Closed-back design feature large aperture 40mm drivers with neodymium magnets * Audio functions (in passive mode) even without the battery * Fully integrated electronics-no external modules needed * QuietPoint™ active noise reduction up to 20dB * Impedance: 300 ohms * Includes 1/4″ stereo adapter, airline adapter, AAA battery and carrying pouch